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California Cosmetology Written Exam — key terms, tricks & tips

Everything from the course in one searchable place: 731 entries. Use it to review before a practice test or look up a word you forgot.

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Key term

BBC

Board of Barbering and Cosmetology; the California agency that licenses and regulates cosmetologists.

Getting Licensed in California

Key term

Clock hours

Documented hours of training time required before a student is eligible to apply for licensure.

Getting Licensed in California

Key term

Certificate of completion

Document from a school or apprenticeship confirming required training hours were finished.

Getting Licensed in California

Key term

Live Scan

California's electronic fingerprint background check system required during license application.

Getting Licensed in California

Key term

PSI

The third-party testing company that administers the California cosmetology written licensing exam.

Getting Licensed in California

Key term

SB 803

California law that eliminated the separate hands-on practical licensing exam, leaving only the written exam.

Getting Licensed in California

Key term

Apprenticeship pathway

Alternative to school where a trainee learns on the job under direct supervision of a licensed cosmetologist.

Getting Licensed in California

Memory trick

Getting Your CA Cosmetology License: The Full Path

"Hours, Hire (apply), Hit the exam" — complete your training HOURS, then HIRE the Board's approval by applying, then HIT the exam to get licensed.

Getting Licensed in California

Exam tip

Getting Your CA Cosmetology License: The Full Path

Exam tip: California is written-only under SB 803 — there is no separate hands-on practical test at PSI. Don't confuse this with school practical hours, which you still must complete before applying; the practical skills are simply demonstrated during training, not retested on exam day.

Getting Licensed in California

Common mistake

Getting Your CA Cosmetology License: The Full Path

Assuming hours from an unlicensed school or informal training count toward eligibility

Getting Licensed in California

Common mistake

Getting Your CA Cosmetology License: The Full Path

Thinking there's still a hands-on practical exam at PSI after SB 803

Getting Licensed in California

Common mistake

Getting Your CA Cosmetology License: The Full Path

Forgetting that Board approval (not just finishing school) is required before scheduling the PSI exam

Getting Licensed in California

Key term

Scope of practice

The specific services a license legally authorizes a person to perform

Getting Licensed in California

Key term

Esthetician license

A separate California license limited to skin care services only

Getting Licensed in California

Key term

Electrolysis license

A distinct license required to permanently remove hair using electric current

Getting Licensed in California

Key term

Referral

Directing a client to another licensed professional for services outside your scope

Getting Licensed in California

Key term

Invasive procedure

A treatment that penetrates or breaks the skin, such as injections or piercing

Getting Licensed in California

Key term

Permanent cosmetics

Tattooed makeup (e.g., microblading) requiring additional state registration

Getting Licensed in California

Key term

Diagnose

To identify a disease or medical condition — never permitted for cosmetologists

Getting Licensed in California

Memory trick

Scope of Practice: What a Cosmetologist May Do

HSNR: Hair, Skin, Nails, Removal — that's the scope; anything that breaks the skin or treats disease is NOT your role.

Getting Licensed in California

Exam tip

Scope of Practice: What a Cosmetologist May Do

California cosmetology licenses are combination licenses covering hair, skin, nails, and hair removal, but electrolysis, tattooing/permanent cosmetics, and any medically invasive procedure fall outside this scope and require separate state authority — expect exam questions that describe a service and ask whether it is 'within scope.'

Getting Licensed in California

Common mistake

Scope of Practice: What a Cosmetologist May Do

Assuming a cosmetology license covers electrolysis, piercing, or injectables — it does not

Getting Licensed in California

Common mistake

Scope of Practice: What a Cosmetologist May Do

Attempting to diagnose or 'reassure' a client about a suspicious skin condition instead of referring them out

Getting Licensed in California

Common mistake

Scope of Practice: What a Cosmetologist May Do

Performing permanent makeup/microblading without the required additional registration

Getting Licensed in California

Key term

Barbering and Cosmetology Act

California statute (Bus. & Prof. Code §7300+) creating the BBC and governing licensing and scope.

Getting Licensed in California

Key term

Title 16, Division 9

California Code of Regulations section with detailed health and safety rules for salons.

Getting Licensed in California

Key term

Citation

Formal notice from the BBC documenting a violation, which may include a fine.

Getting Licensed in California

Key term

Order of correction

Requirement to fix a violation by a specific deadline.

Getting Licensed in California

Key term

Unannounced inspection

BBC inspector visit to a licensed establishment without prior notice.

Getting Licensed in California

Key term

Establishment license

License required for the salon location itself, separate from individual licenses.

Getting Licensed in California

Key term

Disciplinary action

Board action against a license, such as suspension, probation, or revocation.

Getting Licensed in California

Memory trick

The Act, Title 16 Rules, and BBC Inspections

Act = 'A' for Authority (the law that creates power); Title 16 = 'T' for Technique (the how-to rules for tools and cleaning).

Getting Licensed in California

Exam tip

The Act, Title 16 Rules, and BBC Inspections

California BBC inspectors have authority to enter any licensed establishment during business hours without notice; refusing entry or obstructing an inspection is itself a citable offense, separate from any sanitation violation found.

Getting Licensed in California

Common mistake

The Act, Title 16 Rules, and BBC Inspections

Thinking the Act and Title 16 are the same thing — one is law, one is detailed regulation

Getting Licensed in California

Common mistake

The Act, Title 16 Rules, and BBC Inspections

Assuming inspectors give advance warning before visiting

Getting Licensed in California

Common mistake

The Act, Title 16 Rules, and BBC Inspections

Believing a citation is just a warning with no lasting record

Getting Licensed in California

Key term

Booth renter

A licensed operator who rents space in someone else's salon, acting as an independent contractor.

Getting Licensed in California

Key term

Individual license

Personal license (cosmetologist, barber, esthetician, manicurist, electrologist) authorizing services within its scope.

Getting Licensed in California

Key term

Instructor license

Additional license required beyond a practitioner license to teach in a licensed cosmetology school.

Getting Licensed in California

Key term

Renewal cycle

The set period after which a license expires and must be renewed with a fee to remain active.

Getting Licensed in California

Key term

Lapsed license

An expired license that was not renewed in time, which may need extra steps to reactivate.

Getting Licensed in California

Memory trick

Licenses, Establishments, Booth Renters & Renewal

'Building, Body, Badge' — the Building needs an establishment license, your Body (you) needs your own individual license, and your Badge (license) must be posted, rented chair or not.

Getting Licensed in California

Exam tip

Licenses, Establishments, Booth Renters & Renewal

Exam tip: California does not require continuing education hours to renew a cosmetology license — renewal questions on the exam usually test that renewal depends on fee payment and timing, not classroom hours, so don't pick an answer choice mentioning required CE credits.

Getting Licensed in California

Common mistake

Licenses, Establishments, Booth Renters & Renewal

Thinking a booth renter is covered by the salon owner's establishment license instead of needing their own posted individual license

Getting Licensed in California

Common mistake

Licenses, Establishments, Booth Renters & Renewal

Assuming an establishment license transfers automatically when a salon is sold or moved

Getting Licensed in California

Common mistake

Licenses, Establishments, Booth Renters & Renewal

Believing California requires continuing education hours to renew a license

Getting Licensed in California

Key term

Authorization to Test (ATT)

A document from the BBC allowing a candidate to schedule their PSI exam appointment

Getting Licensed in California

Key term

Content outline

The BBC's official list of topics and domains the written exam covers

Getting Licensed in California

Key term

Scored item

A test question that counts toward your final score, as opposed to an unscored pretest item

Getting Licensed in California

Key term

Passing score

The minimum percentage (70%) of scored items a candidate must answer correctly to pass

Getting Licensed in California

Key term

Scenario-based question

A test item describing a realistic situation requiring application of a rule or law

Getting Licensed in California

Memory trick

Mastering the PSI Written Exam: A Study Strategy

PASS: Practice by domain, Apply rules to scenarios, Skip and flag when stuck, Score-focused review of misses.

Getting Licensed in California

Exam tip

Mastering the PSI Written Exam: A Study Strategy

California's written exam is administered by PSI, not the BBC directly, and since SB 803 there is no practical/skills exam — only the 110-item, 120-minute written test with a 70% passing score, so all your hands-on training happens in school/apprenticeship, not on test day.

Getting Licensed in California

Common mistake

Mastering the PSI Written Exam: A Study Strategy

Rereading the whole textbook passively instead of practicing questions by content domain

Getting Licensed in California

Common mistake

Mastering the PSI Written Exam: A Study Strategy

Leaving questions blank when stuck instead of guessing (there's no penalty)

Getting Licensed in California

Common mistake

Mastering the PSI Written Exam: A Study Strategy

Ignoring qualifier words like 'first' or 'immediately' that change the correct scenario answer

Getting Licensed in California

Key term

Cell

Smallest basic unit of living matter, made of protoplasm

Science Foundations

Key term

Tissue

Group of similar cells that perform a specific function

Science Foundations

Key term

Organ

Structure made of different tissues that performs a specific body function

Science Foundations

Key term

System

Group of organs working together to perform one or more body functions

Science Foundations

Key term

Metabolism

Chemical process in cells that builds up and breaks down substances for energy

Science Foundations

Key term

Mitosis

Process of cell reproduction where a cell divides into two identical cells

Science Foundations

Key term

Epithelial tissue

Tissue that covers body surfaces, such as skin and glands

Science Foundations

Key term

Integumentary system

Body system made of skin, hair, nails, and glands

Science Foundations

Memory trick

Cells, Tissues & Body Systems for Cosmetologists

Think 'CTOS-O': Cell to Tissue to Organ to System to Organism — the body builds up in that order.

Science Foundations

Exam tip

Cells, Tissues & Body Systems for Cosmetologists

The California BBC written exam includes general anatomy/physiology questions as part of the science foundations content area; you won't need advanced medical detail, but you should recognize the four tissue types and the systems most connected to hair, skin, and nail services.

Science Foundations

Common mistake

Cells, Tissues & Body Systems for Cosmetologists

Confusing tissue types, such as thinking all body coverings are 'muscular tissue' instead of epithelial

Science Foundations

Common mistake

Cells, Tissues & Body Systems for Cosmetologists

Forgetting that the endocrine system's hormones can explain changes in a client's hair or skin, not just diet or products

Science Foundations

Common mistake

Cells, Tissues & Body Systems for Cosmetologists

Overlooking the nervous system's role in explaining why clients feel different sensitivity during services

Science Foundations

Key term

Cuticle

Outermost protective layer of the hair shaft made of overlapping scales.

Science Foundations

Key term

Cortex

Middle layer of hair containing melanin and most of the chemical bonds.

Science Foundations

Key term

Medulla

Innermost layer of the hair shaft, sometimes absent in fine hair.

Science Foundations

Key term

Follicle

Tube-shaped depression in the skin from which hair grows.

Science Foundations

Key term

Dermal papilla

Cone-shaped structure at follicle base supplying blood to the matrix.

Science Foundations

Key term

Hydrogen bond

Weak physical bond broken by water or heat; responsible for temporary styles.

Science Foundations

Key term

Salt bond

Weak physical bond broken by changes in pH.

Science Foundations

Key term

Disulfide bond

Strong chemical bond between sulfur atoms, broken only by chemical services.

Science Foundations

Memory trick

Hair Structure and Chemical Bonds

CCM from outside in: Cuticle Coats, Cortex Carries color, Medulla is Missing sometimes.

Science Foundations

Exam tip

Hair Structure and Chemical Bonds

California exam questions frequently test bond identification in scenario form, such as identifying which bond a permanent wave breaks versus a wet set; know that disulfide bonds require chemical reducing agents, not just water or heat.

Science Foundations

Common mistake

Hair Structure and Chemical Bonds

Confusing hydrogen bonds (temporary, water-based) with disulfide bonds (permanent, chemical)

Science Foundations

Common mistake

Hair Structure and Chemical Bonds

Forgetting the medulla can be absent, especially in fine hair

Science Foundations

Common mistake

Hair Structure and Chemical Bonds

Thinking the cortex is the outer layer instead of the cuticle

Science Foundations

Key term

Anagen

The active growth phase of the hair, lasting the longest of the three phases.

Science Foundations

Key term

Catagen

The brief transitional phase where growth stops and the follicle shrinks.

Science Foundations

Key term

Telogen

The resting phase where the old hair sits inactive before shedding.

Science Foundations

Key term

Hair bulb

The rounded structure at the base of the follicle where cell division occurs.

Science Foundations

Key term

Club hair

A hair whose root has fully keratinized and detached, ready to shed.

Science Foundations

Memory trick

Hair Growth Cycle: Anagen, Catagen, Telogen

A-C-T: Anagen grows, Catagen cuts off (shrinks), Telogen takes a rest (and falls out).

Science Foundations

Exam tip

Hair Growth Cycle: Anagen, Catagen, Telogen

California exam questions on this topic are typically knowledge-based, not law-based: expect a multiple-choice item simply naming the phases and asking which one is the active growth stage or which one involves shedding. There is no specific Bus. & Prof. Code section number tied to hair biology, so focus on remembering the order and general characteristics of anagen, catagen, and telogen rather than a legal citation.

Science Foundations

Common mistake

Hair Growth Cycle: Anagen, Catagen, Telogen

Confusing catagen and telogen order — remember catagen (transition) always comes before telogen (rest), not after

Science Foundations

Common mistake

Hair Growth Cycle: Anagen, Catagen, Telogen

Assuming all client hair loss is abnormal — some daily shedding from telogen hairs is completely normal

Science Foundations

Common mistake

Hair Growth Cycle: Anagen, Catagen, Telogen

Thinking hair grows forever — growth is limited by the length of the anagen phase, then the cycle restarts

Science Foundations

Key term

Epidermis

Outermost, avascular layer of skin made of five sublayers of constantly renewing cells

Science Foundations

Key term

Dermis

Thick, living layer beneath the epidermis containing vessels, nerves, follicles, and glands

Science Foundations

Key term

Stratum Germinativum

Deepest epidermal layer where new cells and melanin pigment are produced

Science Foundations

Key term

Subcutaneous Tissue

Fatty layer beneath the dermis that cushions, insulates, and stores energy

Science Foundations

Key term

Sebaceous Glands

Oil glands attached to follicles that lubricate skin and hair with sebum

Science Foundations

Key term

Sudoriferous Glands

Sweat glands that regulate temperature and release waste through skin pores

Science Foundations

Key term

Collagen

Protein fiber in the dermis that gives skin firmness and structural support

Science Foundations

Key term

Elastin

Protein fiber in the dermis that gives skin flexibility and the ability to snap back

Science Foundations

Memory trick

Skin Structure: Epidermis, Dermis & Subcutaneous Tissue

Remember epidermis layers deepest to outermost with: 'Get Some Groceries, Little Corn' = Germinativum, Spinosum, Granulosum, Lucidum, Corneum.

Science Foundations

Exam tip

Skin Structure: Epidermis, Dermis & Subcutaneous Tissue

California exam questions often test the exact order of the five epidermal layers and which structures are located in the dermis versus epidermis; memorize the order precisely since it appears as direct recall questions on the PSI written exam.

Science Foundations

Common mistake

Skin Structure: Epidermis, Dermis & Subcutaneous Tissue

Confusing which glands make oil (sebaceous) versus sweat (sudoriferous)

Science Foundations

Common mistake

Skin Structure: Epidermis, Dermis & Subcutaneous Tissue

Thinking the epidermis has blood vessels; only the dermis does

Science Foundations

Common mistake

Skin Structure: Epidermis, Dermis & Subcutaneous Tissue

Mixing up the order of epidermal layers, especially placing lucidum incorrectly

Science Foundations

Key term

Nail plate

The visible hardened keratin structure covering the nail bed.

Science Foundations

Key term

Nail bed

Skin beneath the nail plate supplying blood and nerve support.

Science Foundations

Key term

Matrix

Living tissue at the nail base that generates new nail cells.

Science Foundations

Key term

Lunula

Visible pale half-moon shape showing the matrix beneath the plate.

Science Foundations

Key term

Eponychium

Living skin at the base of the nail overlapping the plate slightly.

Science Foundations

Key term

Hyponychium

Skin under the free edge that seals out bacteria and debris.

Science Foundations

Key term

Free edge

Part of the nail plate extending beyond the fingertip.

Science Foundations

Memory trick

Nail Structure: Plate, Bed, Matrix, Cuticle & Growth

'Matrix Makes it, Cuticle Covers it' — the Matrix Makes new nail cells, the Cuticle just Covers and seals the edge.

Science Foundations

Exam tip

Nail Structure: Plate, Bed, Matrix, Cuticle & Growth

California Title 16 rules require that any tool coming into contact with blood or broken skin (which can happen from cutting the eponychium) be immediately removed from use, and the client must be treated with an approved antiseptic; the incident and cleanup must follow the state's bloodborne pathogen exposure procedure.

Science Foundations

Common mistake

Nail Structure: Plate, Bed, Matrix, Cuticle & Growth

Confusing the cuticle (dead, trimmable) with the eponychium (living, do not cut)

Science Foundations

Common mistake

Nail Structure: Plate, Bed, Matrix, Cuticle & Growth

Believing the nail bed produces new nail growth instead of the matrix

Science Foundations

Common mistake

Nail Structure: Plate, Bed, Matrix, Cuticle & Growth

Assuming all nails grow at the same rate regardless of age, health, or location on the body

Science Foundations

Key term

Matter

Anything that has mass and occupies space; exists as solid, liquid, or gas

Science Foundations

Key term

pH scale

A 0-14 scale measuring acidity or alkalinity of a water-based solution

Science Foundations

Key term

Acid mantle

The naturally slightly acidic protective film on skin and hair, roughly pH 4.5-5.5

Science Foundations

Key term

Alkaline (base)

A substance with pH above 7 that swells and opens the hair cuticle

Science Foundations

Key term

Oxidation

A chemical reaction where a substance loses electrons and gains oxygen

Science Foundations

Key term

Reduction

A chemical reaction where a substance gains electrons and loses oxygen

Science Foundations

Key term

Neutralizer

An oxidizing product used after perm lotion to re-harden hair in its new shape

Science Foundations

Memory trick

Chemistry Basics: pH, Acids, Alkalis, Oxidation

'Alkaline Lifts, Acid Locks' — alkaline products lift/open the cuticle, acidic products lock/close it back down.

Science Foundations

Exam tip

Chemistry Basics: pH, Acids, Alkalis, Oxidation

The BBC written exam frequently tests pH scale ranges and matching products (acid vs alkaline) to their effect on the cuticle; know that 7 is neutral and that the acid mantle is naturally acidic, since several exam items describe a product's pH and ask you to predict its effect on hair or skin.

Science Foundations

Common mistake

Chemistry Basics: pH, Acids, Alkalis, Oxidation

Confusing pH direction: thinking higher pH means more acidic instead of more alkaline

Science Foundations

Common mistake

Chemistry Basics: pH, Acids, Alkalis, Oxidation

Believing oxidation and reduction happen independently, when perms and color always require both steps as a pair

Science Foundations

Common mistake

Chemistry Basics: pH, Acids, Alkalis, Oxidation

Assuming all chemical services are equally damaging regardless of pH, instead of matching product pH to the desired cuticle action

Science Foundations

Key term

Current

The flow of electrons through a conductor.

Science Foundations

Key term

Volt

Unit measuring the force or pressure of electricity.

Science Foundations

Key term

Amp (ampere)

Unit measuring the amount of electric current flowing.

Science Foundations

Key term

Ohm

Unit measuring resistance to electric current flow.

Science Foundations

Key term

Conductor

A material, like metal, that allows electricity to flow easily.

Science Foundations

Key term

Insulator

A material, like rubber, that resists electric current flow.

Science Foundations

Key term

GFCI

Ground fault circuit interrupter; shuts off power to prevent shock near water.

Science Foundations

Key term

Infrared light

Long-wavelength light felt as heat; used in some salon dryers.

Science Foundations

Memory trick

Electricity & Light Basics for the Salon

VAR: Volts push, Amps flow, Resistance (ohms) slows — remember the electricity trio in that order.

Science Foundations

Exam tip

Electricity & Light Basics for the Salon

California Title 16 regulations require salons to maintain equipment in safe working order; using a tool with a damaged or exposed electrical cord is a health and safety violation that can result in a citation during a BBC inspection, in addition to being an exam topic under electrical safety.

Science Foundations

Common mistake

Electricity & Light Basics for the Salon

Confusing UV and LED as being the same type of light energy

Science Foundations

Common mistake

Electricity & Light Basics for the Salon

Assuming a tool is safe to use just because it still turns on despite a frayed cord

Science Foundations

Common mistake

Electricity & Light Basics for the Salon

Forgetting that GFCI outlets are specifically required near water/wet areas in the salon

Science Foundations

Key term

Pathogenic

Harmful and capable of causing disease.

Infection Control

Key term

Nonpathogenic

Not harmful; may even be beneficial to the body.

Infection Control

Key term

Bacterial spore

A protective shell some bacteria form to survive harsh conditions.

Infection Control

Key term

Virus

Tiny microorganism that needs a living host cell to reproduce.

Infection Control

Key term

Tinea

Fungal skin infection commonly known as ringworm.

Infection Control

Key term

Onychomycosis

Fungal infection of the nail plate causing discoloration and crumbling.

Infection Control

Key term

Pediculosis

Infestation with head lice.

Infection Control

Key term

Scabies

Contagious skin condition caused by burrowing mites.

Infection Control

Memory trick

Microorganisms: Bacteria, Viruses, Fungi, Parasites

BVFP: 'Bad Very Funky Pests' — Bacteria, Viruses, Fungi, Parasites, the four microorganism groups to know.

Infection Control

Exam tip

Microorganisms: Bacteria, Viruses, Fungi, Parasites

California regulations (Title 16, Division 9) require that a cosmetologist refuse service to any client showing visible signs of a contagious skin, scalp, or nail disorder (including fungal infections, lice, or scabies) and refer them to a physician; the exam frequently tests this refusal-and-referral rule as a scenario question.

Infection Control

Common mistake

Microorganisms: Bacteria, Viruses, Fungi, Parasites

Confusing bacteria and viruses and assuming disinfectants that kill bacteria automatically kill viruses (always check the label's kill claims)

Infection Control

Common mistake

Microorganisms: Bacteria, Viruses, Fungi, Parasites

Servicing a client with visible fungal or parasitic signs instead of refusing and referring them

Infection Control

Common mistake

Microorganisms: Bacteria, Viruses, Fungi, Parasites

Thinking all bacteria are harmful, when most are actually nonpathogenic

Infection Control

Key term

Causative agent

The specific pathogen that causes a disease, such as a bacterium or fungus

Infection Control

Key term

Reservoir

A place where a pathogen lives and multiplies, like a dirty tool or wound

Infection Control

Key term

Portal of exit

The route a pathogen uses to leave its reservoir, such as blood or droplets

Infection Control

Key term

Mode of transmission

The way a pathogen travels from one host or object to another

Infection Control

Key term

Portal of entry

The route a pathogen uses to enter a new host, such as a cut or the eyes

Infection Control

Key term

Susceptible host

A person whose immune system is not able to resist an infection

Infection Control

Key term

Fomite

An inanimate object, like a comb or cape, that can carry and transmit pathogens

Infection Control

Memory trick

How Infection Spreads: Breaking the Chain

'Can Rats Eat Moldy Eggs, Silly?' = Causative agent, Reservoir, Exit, Mode of transmission, Entry, Susceptible host.

Infection Control

Exam tip

How Infection Spreads: Breaking the Chain

The BBC exam frequently phrases chain-of-infection ideas as 'what infection control failure occurred' scenarios rather than asking you to name the links directly; recognizing which link was broken (or left unbroken) helps you pick the correct answer even if the term itself isn't used.

Infection Control

Common mistake

How Infection Spreads: Breaking the Chain

Thinking disinfection alone is enough; transmission can still occur through unwashed hands or uncovered cuts

Infection Control

Common mistake

How Infection Spreads: Breaking the Chain

Believing porous or single-use items can be disinfected and reused, when they must be discarded

Infection Control

Common mistake

How Infection Spreads: Breaking the Chain

Assuming a healthy-looking client cannot be a reservoir; many carriers show no visible symptoms

Infection Control

Key term

Cleaning

Physical removal of dirt and debris using soap, water, and friction.

Infection Control

Key term

Disinfecting

Using an EPA-registered chemical to kill most germs on hard, non-porous surfaces.

Infection Control

Key term

Sterilizing

Killing all microbial life, including spores, usually with an autoclave.

Infection Control

Key term

Non-porous

A surface with no pores, like metal or hard plastic, that can be effectively disinfected.

Infection Control

Key term

Porous

A surface with tiny openings, like an emery board, that traps debris and germs.

Infection Control

Key term

Contact time

The minimum time a disinfectant must stay wet on a surface to work.

Infection Control

Key term

Autoclave

A device using pressurized steam heat to sterilize instruments.

Infection Control

Memory trick

Decontamination Levels: Clean, Disinfect, Sterilize

Clean, then Kill, then Kill It ALL: Clean removes dirt, Disinfect kills most germs, Sterilize kills it ALL (spores too).

Infection Control

Exam tip

Decontamination Levels: Clean, Disinfect, Sterilize

California cosmetology law (Title 16 CCR) requires disinfection, not sterilization, of non-porous tools between clients using an EPA-registered disinfectant; sterilization/autoclaves are not a standard requirement tested for cosmetology licensure. The exam commonly tests that porous items must be single-use and disposed of, never soaked in disinfectant for reuse.

Infection Control

Common mistake

Decontamination Levels: Clean, Disinfect, Sterilize

Skipping the cleaning step and putting a dirty tool straight into disinfectant

Infection Control

Common mistake

Decontamination Levels: Clean, Disinfect, Sterilize

Believing disinfecting and sterilizing are the same thing

Infection Control

Common mistake

Decontamination Levels: Clean, Disinfect, Sterilize

Trying to disinfect porous items like nail files or sponges instead of throwing them away

Infection Control

Key term

EPA-registered disinfectant

A product tested and approved to kill bacteria, viruses, and fungi as labeled

Infection Control

Key term

Hospital-grade/hospital-level

Marketing term for a disinfectant proven effective against a broad range of pathogens

Infection Control

Key term

Dilution ratio

The exact amount of concentrate to mix with water, set by the manufacturer

Infection Control

Key term

Immersion

Fully submerging a tool in liquid disinfectant, not just spraying it

Infection Control

Key term

Quats

Quaternary ammonium compounds, a common type of salon disinfectant

Infection Control

Key term

Label instructions

Manufacturer's directions for mixing and use; legally required to be followed

Infection Control

Memory trick

EPA-Registered Disinfectants: Choosing & Using Them

Clean, Cover, Count — clean the tool, cover it completely in solution, count the full minutes on the label.

Infection Control

Exam tip

EPA-Registered Disinfectants: Choosing & Using Them

California Code of Regulations Title 16, Division 9 requires all non-electrical tools to be cleaned then fully immersed in an EPA-registered disinfectant for the manufacturer's required contact time before reuse; the exam often tests that solution must be changed daily or sooner if visibly contaminated, and that following the product label is a legal requirement, not just a suggestion.

Infection Control

Common mistake

EPA-Registered Disinfectants: Choosing & Using Them

Pulling tools out of disinfectant before the full label contact time has passed

Infection Control

Common mistake

EPA-Registered Disinfectants: Choosing & Using Them

Eyeballing the dilution instead of measuring the exact ratio

Infection Control

Common mistake

EPA-Registered Disinfectants: Choosing & Using Them

Reusing cloudy or debris-filled solution instead of mixing a fresh batch

Infection Control

Key term

Multi-use implement

A tool, like shears or combs, that is used on more than one client after being disinfected between uses.

Infection Control

Key term

Single-use implement

A tool meant for one client only and then discarded, such as an emery board.

Infection Control

Key term

Covered container

A closed storage unit required to protect clean or disinfecting tools from airborne contamination.

Infection Control

Key term

Soiled/used container

A separate, labeled, closed container holding implements that have touched a client and not yet been cleaned.

Infection Control

Key term

Cross-contamination

Transfer of pathogens from a soiled tool or surface to a clean one or to a client.

Infection Control

Memory trick

Disinfecting & Storing Non-Electrical Tools in CA

'Dirty in the Drawer, Clean in the Covered Can' — soiled tools get their own closed bin, disinfected tools get their own labeled covered container.

Infection Control

Exam tip

Disinfecting & Storing Non-Electrical Tools in CA

California Code of Regulations, Title 16, Division 9 requires that used implements be kept in a closed, labeled container separate from disinfected implements, and that disinfected implements be stored in a clean, dry, covered, labeled container until use — inspectors check for both containers and their labels at every station, so expect an exam question describing an open drawer or unlabeled jar as the violation.

Infection Control

Common mistake

Disinfecting & Storing Non-Electrical Tools in CA

Storing used and disinfected tools in the same open drawer or jar

Infection Control

Common mistake

Disinfecting & Storing Non-Electrical Tools in CA

Placing a visibly dirty tool straight into disinfectant without cleaning it first

Infection Control

Common mistake

Disinfecting & Storing Non-Electrical Tools in CA

Using an uncovered or unlabeled container for either soiled or disinfected implements

Infection Control

Key term

Single-use item

Porous or disposable tool used once then thrown away, never disinfected for reuse

Infection Control

Key term

Clipper disinfectant spray

Product that cleans, disinfects, cools, and lubricates clipper/trimmer blades

Infection Control

Key term

Covered waste container

Lidded trash receptacle used to dispose of single-use and contaminated items

Infection Control

Memory trick

Electrical Tools & Single-Use Items: What to Toss

"Porous = Pitch it, Plastic/Metal = Polish it (disinfect)."

Infection Control

Exam tip

Electrical Tools & Single-Use Items: What to Toss

California Code of Regulations Title 16, Division 9 requires that single-use/porous items (cotton balls, emery boards, buffer blocks, wooden sticks, sponges) be discarded immediately after use on a client and prohibits their reuse; electrical tools must be cleaned of debris and disinfected with an EPA-registered product per label directions rather than immersed. Exam tip: if a question asks whether a specific porous item can be reused after disinfecting, the answer is no — it must be thrown away.

Infection Control

Common mistake

Electrical Tools & Single-Use Items: What to Toss

Soaking curling irons or clippers directly in disinfectant solution, damaging the tool and creating shock risk

Infection Control

Common mistake

Electrical Tools & Single-Use Items: What to Toss

Reusing an emery board, buffer, or cotton item on the same client at a later visit because it 'looks clean'

Infection Control

Common mistake

Electrical Tools & Single-Use Items: What to Toss

Setting single-use items back in the clean supply drawer instead of discarding them right after use

Infection Control

Key term

Biofilm

A slimy layer of bacteria that clings inside pipes and pumps, resisting disinfection

Infection Control

Key term

Recirculating foot spa

A pedicure basin with a pump that pulls water through a screen and pushes it back out

Infection Control

Key term

Pipeless (liner) system

A foot spa design using a whirlpool jet outside the water path or disposable liners to reduce debris buildup

Infection Control

Key term

Disinfection log

Written record showing when and how a foot spa or basin was cleaned and disinfected

Infection Control

Key term

Screen/filter

Removable part of a foot spa that traps hair and skin, needing daily removal and cleaning

Infection Control

Memory trick

Foot Spa & Basin Cleaning Logs in California

Foot spas: 'Scoop, Suds, Sanitize, Screen, Sunday-flush, Sign the log' — six S-steps to remember the routine.

Infection Control

Exam tip

Foot Spa & Basin Cleaning Logs in California

California's Title 16 rules require foot spas and pedicure basins to be cleaned and disinfected after every client, with screens/filters cleaned daily and a deeper flush of the internal system performed on a regular schedule; salons must keep a written cleaning log on site for the board inspector to review. On the exam, if a question describes a foot spa problem, look for the answer involving both cleaning AND disinfecting, plus proper logging — not just one product wipe-down.

Infection Control

Common mistake

Foot Spa & Basin Cleaning Logs in California

Disinfecting a foot spa without washing it with soap and water first

Infection Control

Common mistake

Foot Spa & Basin Cleaning Logs in California

Never removing or cleaning the screen/filter, letting debris build up unseen

Infection Control

Common mistake

Foot Spa & Basin Cleaning Logs in California

Keeping no log, or leaving entries blank, even when cleaning is actually done

Infection Control

Key term

Bloodborne pathogen

A disease-causing microorganism carried in blood or body fluids, such as Hepatitis B or HIV.

Infection Control

Key term

Exposure incident

Contact with blood or body fluid that could transmit infection to skin, eyes, or mucous membranes.

Infection Control

Key term

Standard precautions

Treating all blood and body fluids as if they are infectious, regardless of the source.

Infection Control

Key term

Contaminated waste

Materials exposed to blood or body fluid that must be discarded in a covered, lined container.

Infection Control

Key term

Sharps disposal

Safe discarding of used blades, needles, or other sharp single-use items.

Infection Control

Memory trick

Blood Exposure Incident: The Exact Procedure

STOP, GLOVE, PRESS, TOSS, DISINFECT, WASH — say it like a checklist every time you see red.

Infection Control

Exam tip

Blood Exposure Incident: The Exact Procedure

California regulation (16 CCR, Division 9) requires that any implement contaminated with blood be either fully cleaned and disinfected before reuse or, if it is a single-use item, discarded immediately in a closed waste container; the workstation must also be disinfected before the next client is served. Exam tip: watch for answer choices that suggest just wiping blood with a towel or reusing a nicked tool after 'quick cleaning'—these are always wrong.

Infection Control

Common mistake

Blood Exposure Incident: The Exact Procedure

Continuing the service before the bleeding has fully stopped and the area is cleaned

Infection Control

Common mistake

Blood Exposure Incident: The Exact Procedure

Reusing a blood-contaminated multi-use tool without full disinfection

Infection Control

Common mistake

Blood Exposure Incident: The Exact Procedure

Throwing bloody gauze or gloves into the regular trash instead of a covered container

Infection Control

Key term

PPE

Personal protective equipment; barriers like gloves, masks, and aprons that block contamination

Infection Control

Key term

Portal of entry/exit

The pathway microorganisms use to leave one host and enter another

Infection Control

Key term

Lather

The soapy foam created during hand washing that helps lift microorganisms off skin

Infection Control

Key term

Blood exposure incident

Any event where blood or body fluid contacts skin, tools, or surfaces during a service

Infection Control

Memory trick

Standard Precautions, Hand Washing & PPE

WASH: Wet, Apply soap, Scrub 20 seconds, Handle towel to turn off faucet.

Infection Control

Exam tip

Standard Precautions, Hand Washing & PPE

California's Barbering and Cosmetology Act and Title 16 regulations require licensees to wash their hands with soap and water (or an equivalent hand cleanser) immediately before serving each client, and single-use gloves must be worn and discarded after each use when a procedure could expose the cosmetologist or client to blood or body fluids. Expect exam questions that test whether you know hand washing happens before every service, not just once at the start of the day.

Infection Control

Common mistake

Standard Precautions, Hand Washing & PPE

Reusing gloves between clients instead of discarding after each use

Infection Control

Common mistake

Standard Precautions, Hand Washing & PPE

Washing hands quickly without scrubbing between fingers, under nails, or up to the wrists

Infection Control

Common mistake

Standard Precautions, Hand Washing & PPE

Assuming a healthy-looking client doesn't require the same precautions as any other client

Infection Control

Key term

SDS (Safety Data Sheet)

Standardized document detailing a chemical's hazards, handling, and emergency response information

Chemical and Workplace Safety

Key term

Hazard Communication Standard (HCS)

OSHA rule requiring labeling and SDS access so employees know chemical hazards, the 'right-to-know' law

Chemical and Workplace Safety

Key term

GHS

Globally Harmonized System, the international standard for chemical labels and 16-section SDS format

Chemical and Workplace Safety

Key term

Cal-OSHA

California's occupational safety agency enforcing workplace health and safety rules, often stricter than federal OSHA

Chemical and Workplace Safety

Key term

Pictogram

Standardized symbol on a label or SDS warning of a specific chemical hazard, like flammability

Chemical and Workplace Safety

Key term

Secondary container

A bottle chemicals are decanted into that must still be properly labeled with contents and hazards

Chemical and Workplace Safety

Key term

Right-to-know law

Common nickname for HCS, guaranteeing employee access to chemical hazard information

Chemical and Workplace Safety

Memory trick

Safety Data Sheets & Hazard Communication

Think '1-2-4-7-8': the sections you flip to fastest in an emergency — ID, hazards, first aid, storage, PPE.

Chemical and Workplace Safety

Exam tip

Safety Data Sheets & Hazard Communication

California salons are inspected by the Board of Barbering and Cosmetology, but chemical safety and SDS access enforcement falls under Cal-OSHA, which can issue separate citations from Board license violations; the exam may test that these are two different enforcing agencies working together.

Chemical and Workplace Safety

Common mistake

Safety Data Sheets & Hazard Communication

Assuming only the manager needs to know where SDS sheets are kept

Chemical and Workplace Safety

Common mistake

Safety Data Sheets & Hazard Communication

Storing SDS binders somewhere employees cannot access during a shift

Chemical and Workplace Safety

Common mistake

Safety Data Sheets & Hazard Communication

Believing SDS sheets are only required for 'dangerous' chemicals like bleach, when nearly all salon products qualify

Chemical and Workplace Safety

Key term

Inhalation exposure

Breathing in vapors, dust or fumes from a chemical product

Chemical and Workplace Safety

Key term

Sensitization

Increased allergic reaction after repeated chemical exposure over time

Chemical and Workplace Safety

Key term

Source-capture ventilation

Local exhaust system that removes fumes/dust at the point of creation

Chemical and Workplace Safety

Key term

Decanted container

A smaller bottle filled from a larger original chemical container

Chemical and Workplace Safety

Key term

Flash point

Lowest temperature at which a chemical's vapors can ignite

Chemical and Workplace Safety

Key term

Dilution ventilation

General room air exchange that mixes and reduces contaminant concentration

Chemical and Workplace Safety

Key term

Chemical-soaked waste

Cotton, gloves or materials saturated with product; needs covered disposal

Chemical and Workplace Safety

Memory trick

Chemical Exposure, Ventilation & Storage

LABEL IT, LID IT, VENT IT — every container labeled, every waste bin covered, every station ventilated.

Chemical and Workplace Safety

Exam tip

Chemical Exposure, Ventilation & Storage

California Cal-OSHA and BBC rules require salons to label all chemical containers (including decanted bottles), keep SDS accessible, store flammables safely away from heat sources, and provide adequate ventilation; exam questions often present a labeling or ventilation scenario and ask what the technician should have done first.

Chemical and Workplace Safety

Common mistake

Chemical Exposure, Ventilation & Storage

Assuming a scented candle or air freshener fixes poor ventilation instead of removing the source of fumes

Chemical and Workplace Safety

Common mistake

Chemical Exposure, Ventilation & Storage

Pouring product into an unlabeled cup or spray bottle 'just for today'

Chemical and Workplace Safety

Common mistake

Chemical Exposure, Ventilation & Storage

Storing chemical waste in an open, uncovered trash can near the service area

Chemical and Workplace Safety

Key term

PASS technique

Pull, Aim, Squeeze, Sweep — the steps for operating a fire extinguisher.

Chemical and Workplace Safety

Key term

ABC-rated extinguisher

Multipurpose extinguisher effective on ordinary combustibles, flammable liquids, and electrical fires.

Chemical and Workplace Safety

Key term

Flammable

A substance capable of catching fire and burning easily.

Chemical and Workplace Safety

Key term

Ground fault

An unintended electrical path to ground, often causing shock hazards near water.

Chemical and Workplace Safety

Key term

Evacuation route

A planned, clear path used to safely exit a building during an emergency.

Chemical and Workplace Safety

Key term

Frayed cord

A worn or damaged electrical cord with exposed wiring, a shock and fire hazard.

Chemical and Workplace Safety

Key term

Non-slip mat

A textured mat placed in wet areas to reduce slip-and-fall risk.

Chemical and Workplace Safety

Memory trick

Fire, Electrical & Physical Safety in the Salon

'Pull, Aim, Squeeze, Sweep — keep the salon fire-safe and neat!'

Chemical and Workplace Safety

Exam tip

Fire, Electrical & Physical Safety in the Salon

Cal-OSHA requires California employers to maintain a safe workplace, including accessible fire extinguishers, clear exits, and proper storage of flammable materials; on the exam, expect scenario questions asking what a cosmetologist should do first when a small fire or electrical hazard occurs — the safe, immediate action (unplug, use PASS, evacuate) is usually correct over ignoring it or improvising.

Chemical and Workplace Safety

Common mistake

Fire, Electrical & Physical Safety in the Salon

Using water to try to put out an electrical or grease fire

Chemical and Workplace Safety

Common mistake

Fire, Electrical & Physical Safety in the Salon

Running multiple high-wattage tools off one overloaded outlet or extension cord

Chemical and Workplace Safety

Common mistake

Fire, Electrical & Physical Safety in the Salon

Leaving cords, spills, or clutter in walkways and near shampoo stations

Chemical and Workplace Safety

Key term

Ergonomics

Designing tasks and equipment to fit the worker's body and reduce strain

Chemical and Workplace Safety

Key term

Repetitive Strain Injury (RSI)

Injury from repeated motions overusing the same muscles or tendons

Chemical and Workplace Safety

Key term

Carpal Tunnel Syndrome

Nerve compression in the wrist causing numbness, tingling, or pain in the hand

Chemical and Workplace Safety

Key term

Neutral Posture

Body alignment that avoids twisting, bending, or overreaching joints

Chemical and Workplace Safety

Key term

Musculoskeletal Disorder (MSD)

Injury affecting muscles, nerves, tendons, joints, or spinal discs

Chemical and Workplace Safety

Key term

Anti-Fatigue Mat

Cushioned floor mat reducing leg and back strain from prolonged standing

Chemical and Workplace Safety

Key term

Microbreak

A short pause used to stretch and rest overworked muscle groups

Chemical and Workplace Safety

Memory trick

Ergonomics: Protecting Your Own Body

"S.A.F.E. Stylist": Stretch often, Adjust chair height, Feet shoulder-width, Elbows close to body.

Chemical and Workplace Safety

Exam tip

Ergonomics: Protecting Your Own Body

The CA BBC exam may include a general item on workplace safety and self-care habits under health and safety topics; while there is no specific ergonomics statute number to memorize, know that Cal-OSHA's general duty and injury-prevention program requirements support safe workstation setup, and licensees are expected to understand basic body mechanics as part of overall salon safety.

Chemical and Workplace Safety

Common mistake

Ergonomics: Protecting Your Own Body

Bending at the waist to lift supply boxes instead of bending the knees

Chemical and Workplace Safety

Common mistake

Ergonomics: Protecting Your Own Body

Working with dull shears, which forces extra hand grip strain over time

Chemical and Workplace Safety

Common mistake

Ergonomics: Protecting Your Own Body

Ignoring early tingling or soreness instead of adjusting posture or seeking care

Chemical and Workplace Safety

Key term

Establishment permit

License issued to the salon business itself, required in addition to individual worker licenses

Chemical and Workplace Safety

Key term

Right to know

Worker's legal right to access information about hazardous chemicals used on the job

Chemical and Workplace Safety

Key term

Retaliation

Illegal punishment of a worker for reporting unsafe conditions or filing a safety complaint

Chemical and Workplace Safety

Key term

Workers' compensation

Insurance covering medical costs and lost wages for employees injured on the job

Chemical and Workplace Safety

Key term

BBC inspection

Unannounced visit by the Board of Barbering and Cosmetology checking licenses and sanitation

Chemical and Workplace Safety

Memory trick

Worker Health, Rights & Required CA Postings

BBC checks your BADGE (license/permit), Cal-OSHA checks the AIR you breathe.

Chemical and Workplace Safety

Exam tip

Worker Health, Rights & Required CA Postings

Exam tip: California distinguishes between BBC authority (licensing, sanitation, disinfection under Title 16) and Cal-OSHA authority (workplace safety, chemical exposure, ventilation). Questions naming a specific hazard type (chemical fumes, unsafe wiring, repetitive injury) usually point to Cal-OSHA as the correct enforcement agency, while questions about an expired license or dirty implements point to the BBC.

Chemical and Workplace Safety

Common mistake

Worker Health, Rights & Required CA Postings

Assuming the BBC handles all workplace safety complaints when many belong to Cal-OSHA

Chemical and Workplace Safety

Common mistake

Worker Health, Rights & Required CA Postings

Forgetting the establishment permit is separate from personal licenses and must be posted by the owner

Chemical and Workplace Safety

Common mistake

Worker Health, Rights & Required CA Postings

Believing a worker has no recourse if an employer retaliates for a safety complaint, when retaliation is illegal

Chemical and Workplace Safety

Key term

Consultation

Structured conversation and analysis before a service to determine client needs and history.

Client Consultation and Analysis

Key term

Client record card

Written or digital document tracking a client's service history, formulas, and reactions.

Client Consultation and Analysis

Key term

Open-ended question

A question that requires more than a yes/no answer, encouraging detailed responses.

Client Consultation and Analysis

Key term

Informed consent

Client's agreement to a service after understanding risks, process, and expected results.

Client Consultation and Analysis

Key term

Patch test

Skin test performed before certain chemical services to check for allergic reaction.

Client Consultation and Analysis