California Cosmetology Written Exam flashcards

General ventilation dilutes air throughout a room, while local exhaust ventilation captures contaminants directly at the source, such as a nail workstation.

• Local exhaust is more effective for concentrated fume sources
• General ventilation (fans, open windows) only dilutes overall air quality
• Nail and chemical service stations benefit most from source-capture systems
• Proper ventilation reduces headaches, respiratory irritation, and long-term exposure risk

Memory trick: Capture it at the source before it spreads through the whole room.

Combining bleach and ammonia-based products creates toxic chloramine gas that can cause severe respiratory injury; chemicals should never be mixed without SDS guidance.

• Bleach + ammonia = toxic chloramine gas
• Always check SDS before combining products
• Never assume mixing increases disinfecting power

Memory trick: 'Bleach meets ammonia, breathing becomes agony.'

California cosmetology and establishment licenses issued by the BBC must be renewed every two years.

• Renewal period is 2 years, not annual.
• Late renewal incurs a delinquency fee.
• Practicing on an expired license is a violation of the Barbering and Cosmetology Act.

Memory trick: 'Two by Two' — licenses renew every 2 years, just like animals boarding in pairs.

High-lift blonde permanent color formulas require 40 volume developer to achieve their maximum lightening capability (up to 4 levels).

• High-lift lines are designed for maximum lift with minimal deposit
• 40 volume is the standard developer strength used
• Requires healthy hair to avoid excessive damage

Memory trick: '40 for the max'—high-lift blondes need the strongest developer.

The practice of adjusting posture, tools, and work habits to reduce physical strain and prevent repetitive stress injuries like carpal tunnel syndrome.

• Keep wrists neutral/straight, not bent, while cutting or styling
• Adjust chair/client height to avoid excessive bending or reaching
• Take periodic stretch breaks throughout the shift
• Alternate hands/tools and maintain good posture to reduce strain

Memory trick: 'Keep it straight, keep it safe' — neutral wrist saves nerves.

A blow-dryer attachment with prongs that disperses airflow over a wide area, used to dry curly or wavy hair while preserving its natural pattern and reducing frizz.

• Used on low heat/low speed to prevent frizz
• Hair is cupped in the diffuser bowl rather than pulled taut
• Best suited for curly, wavy, or textured hair types

Memory trick: 'Diffuse the curl, don't abuse the curl.'

A temporary hair removal method using tweezers to pull individual hairs from the root, ideal for precision work like eyebrow shaping.

• Removes hair from the root
• Best for small areas or stray hairs
• Temporary method, hair regrows
• Requires sanitized metal tweezers between clients

Memory trick: Tweezers = 'precision pinchers' for one hair at a time

Hazardous salon chemical waste (e.g., acetone, relaxer residues) must be disposed of per SDS instructions and local hazardous waste regulations, never down a drain or in regular trash.

• Never pour flammable chemicals down drains
• Never mix incompatible chemical wastes together
• Follow SDS section on disposal considerations

Memory trick: SDS is the disposal instruction manual — always check before you toss.

Fine hair has the smallest diameter of the three texture types and is the most fragile, processing chemicals quickly.

• Three textures: fine, medium, coarse
• Fine hair has fewer cuticle layers
• Fine hair is prone to overprocessing and breakage

Memory trick: Fine hair is like Fishing line — thin and quick to snap.

Sugar paste is removed in the direction of hair growth, the opposite of soft wax strip removal, resulting in a gentler service.

• Sugaring is applied against hair growth, then flicked off with growth
• Wax strips are removed against hair growth
• Sugaring is considered gentler and less likely to cause breakage

Memory trick: 'Sugar goes WITH the flow'

A face shape with narrow forehead and chin but wide cheekbones; styling aims to widen the forehead/chin and minimize cheekbone width.

• Narrow forehead and chin, wide cheekbones
• Use bangs to widen forehead visually
• Chin-length layers add jaw fullness

Memory trick: Diamond is wide in the middle—fluff the top and bottom points to match.

Documentation of previous chemical formulas and products used on a client's hair, critical for preventing dangerous incompatibilities and overprocessing.

• Includes metallic salts, relaxers, colors used
• Prevents chemical reactions and hair breakage
• Should prompt a strand test before new services

Memory trick: History on the card stops a chemical CARdash.

An oxidative, deposit-only color mixed with low volume developer that blends gray without lifting natural level.

• Typically mixed with 10 volume developer
• Deposits color only, does not lighten
• Less damaging alternative to permanent color for gray blending

Memory trick: Demi = 'Demi-lift', deposits gently with low volume developer

A check performed during perm processing by partially unwinding a rod to examine the developing S-shape pattern, confirming proper processing before rinsing.

• Performed periodically during processing, not before wrapping
• Underprocessed hair shows a weak, loose S-shape
• Overprocessed hair shows a frizzy, weak, or broken curl

Memory trick: 'Test curl = a sneak peek at the S before you commit'

Paper wraps are a temporary, dissolvable nail repair material, while fiberglass wraps use a durable woven mesh suitable for longer-lasting enhancements with fills.

• Paper dissolves in acetone/polish remover
• Fiberglass has a fine, tight synthetic weave, very durable
• Silk wraps are thinner/smoother than fiberglass but less durable

Memory trick: Paper = temporary patch; Fiberglass = tough long-term mesh.

Ammonium thioglycolate relaxers break disulfide bonds via reduction; an oxidizing neutralizer then reforms bonds in the newly straightened position, unlike the irreversible lanthionization of hydroxide relaxers.

• Uses reduction, same as thio perms
• Requires oxidative neutralization to fix new shape
• Contrasts with hydroxide relaxers' irreversible lanthionization

Memory trick: 'Thio Trades bonds temporarily, hydroxide Hardens them forever'

A wrapping technique where the strand is wound with the rod sitting directly on top of its base section, producing maximum volume and curl close to the scalp.

• Rod sits squarely on the base section
• Produces maximum volume/lift
• Contrasts with off-base (reduced volume) placement

Memory trick: On-base sits right on top of the mountain—maximum lift, closest to the peak (scalp).

Small, hard, whitish keratin-filled cysts embedded in the skin with no visible follicle opening, often found around the eyes.

• Type of closed comedone
• No visible pore opening, unlike whiteheads
• Often requires lancing by a licensed professional for removal

Memory trick: 'Milia = Millet seeds' trapped under skin, hard and white

Used single-use blades and other sharps must be discarded in a labeled, puncture-resistant sharps container, never reused or thrown in regular trash.

• Applies to razor blades, lancets, and other single-use sharp tools.
• Container must be puncture-resistant and clearly labeled.
• Protects employees and waste handlers from bloodborne pathogen exposure.

Memory trick: 'Sharp goes in the box, not the box of tissues' — sharps container only.

After lifting solution processes and is rinsed, a neutralizer is applied to re-form disulfide bonds and set the new lash curl.

• Neutralizer locks in the curled shape
• Must rinse lifting solution completely before neutralizing
• Skipping this step results in an unset, temporary curl

Memory trick: Lift, rinse, neutralize — set the curl just right.

A perm wrapping pattern using curved base sections and rod rows that follow the head's shape to produce directional curl movement.

• Base sections curve to follow head contour
• Produces directional, flowing curl pattern
• Often used for design-specific perm styling

Memory trick: 'Curvature Curves with the Contour of the head'

A gentler perm using glyceryl monothioglycolate at a lower pH (6.5-7.9) that processes slower and often needs heat to activate.

• Lower pH than alkaline waves = less swelling/damage
• Requires heat (thermal wrap or dryer)
• Better suited to fine, color-treated, or delicate hair

Memory trick: Acid waves are gentle and need a warm hug (heat) to work slowly.

Quats are EPA-registered hospital disinfectants effective against bacteria, viruses, and fungi but not bacterial spores, so they disinfect rather than sterilize.

• Must be diluted per manufacturer label
• Effective bactericidal, virucidal, fungicidal
• Not sporicidal — cannot achieve sterilization

Memory trick: Quats kill bugs but 'quit' at spores

The number of individual hairs per square inch of scalp, classified as thin, medium, or thick.

• Average density is about 2,200 hairs per square inch
• Classified as thin, medium, or thick
• Affects how much product and volume a style can hold

Memory trick: DEPT: Density, Elasticity, Porosity, Texture — check the DEPT before you chemically treat.

Test strips designed to measure the parts-per-million (ppm) strength of a quaternary ammonium disinfectant solution, ensuring it remains effective throughout use.

• Confirms disinfectant is at effective strength, not diluted
• Different from pH or litmus test strips
• Should be checked periodically during a busy workday

Memory trick: 'Right strip for the right dip' — quat strips for quat solutions.

California cosmetology establishments must maintain a fully stocked, easily accessible first aid kit to handle minor injuries and blood exposure incidents.

• Required regardless of salon size or service type.
• Must be readily accessible to staff during business hours.
• Complements blood exposure procedures involving gloves, antiseptic, and bandages.

Memory trick: 'Every salon needs a boo-boo box' ready at all times.

The position of a roller relative to its base section determines the amount of volume and lift produced at the scalp.

• On base = roller sits on top of base, 90-degree wrap, maximum volume
• Half off base = roller sits half off, medium volume
• Off base = roller sits below base, minimal volume, more wave than lift

Memory trick: 'On base = on top = tall volume.'

A perm wrap winding hair at an angle from base to ends along the rod, producing uniform curl size along the entire strand—ideal for long hair.

• Rod is often positioned vertically
• Produces even curl diameter top to bottom
• Best suited for long hair lengths

Memory trick: 'Spiral Stretches Straight down for long, even curls'

California salons must maintain written documentation of foot spa cleaning/disinfection after each client, available for Board inspection.

• Log includes date/time of cleaning
• Required regardless of complaints
• Available for inspector review
• Applies to all foot spa basin types

Memory trick: No log, no proof—write it down every time

The three phases of hair growth occur in a repeating sequence: Anagen, Catagen, then Telogen.

• Anagen = active growth phase
• Catagen = short transitional phase
• Telogen = resting/shedding phase, then cycle restarts

Memory trick: 'A Cat Takes a nap' = Anagen, Catagen, Telogen

California regulations require metal implements like tweezers to be cleaned and completely immersed in an EPA-registered hospital-grade disinfectant for the full contact time after each client use.

• Applies to all reusable, non-porous metal implements
• Disinfectant must be EPA-registered and hospital-grade
• Full immersion for the manufacturer's contact time is required

Memory trick: 'Dunk it fully, every single time'

Pathogens that can be transmitted in a salon are classified into four main groups: bacteria, viruses, fungi, and parasites.

• Bacteria: single-celled, e.g., Staph and Strep
• Viruses: need a host cell, e.g., HIV, Hepatitis, HPV
• Fungi: cause ringworm/tinea and nail infections
• Parasites: multicellular, e.g., lice and scabies mites

Memory trick: 'BVFP' — Big Viruses Fear Parasites, but bacteria come first!

For round faces, hairstylists use height at the crown and vertical lines to create an illusion of length, minimizing width.

• Round face: width and length are nearly equal
• Goal is to elongate via height and vertical lines
• Avoid horizontal fullness at cheeks/jaw
• Oval is considered the ideal balanced face shape

Memory trick: Round face = go tall, not wide.

A test performed on a small section of hair before the full perm service to predict processing time and curl result.

• Performed before full application, unlike a test curl
• Different from a predisposition/patch test (allergy check)
• Helps prevent overprocessing or unsatisfactory curl

Memory trick: Test a snippet first so the whole head isn't a surprise.

Ground-fault circuit interrupters cut electrical power instantly when current imbalance is detected, protecting against shock near water sources like foot spas.

• Required in areas with water exposure
• Prevents electrical shock and electrocution
• Different function from surge protectors or power strips

Memory trick: GFCI = 'Guard From Current Injury' near water.

Cosmetologists must observe nonverbal cues like body language and eye contact, which can reveal hesitation or discomfort that contradicts verbal statements, and address them before proceeding.

• Crossed arms, hesitation, or avoiding eye contact may signal doubt
• Verbal agreement alone may not indicate true consent
• Clarifying questions help resolve mixed signals

Memory trick: 'Body talks louder than words' — watch for silent doubt.

A two-part hydroxide relaxer system mixed immediately before use by combining guanidine carbonate cream with a calcium hydroxide activator, marketed as gentler on the scalp.

• Mixed fresh right before application (two components)
• Still works via lanthionization, high pH
• Requires thorough neutralizing shampoo, not oxidation

Memory trick: No-lye is a two-part cocktail—mix carbonate cream and calcium activator fresh, like mixing paint before painting.

Nonpathogenic bacteria are harmless or beneficial and make up the majority of bacteria; pathogenic bacteria cause disease and are the minority.

• ~70% of bacteria are nonpathogenic
• Pathogenic bacteria produce toxins and cause infection
• Standard precautions treat all clients as potentially carrying pathogens

Memory trick: Most bacteria are 'Non' problems — only a few are 'Path'ological

California salons must disinfect implements with an EPA-registered hospital disinfectant for the full contact time; sterilization/autoclaving is not legally required.

• Disinfection, not sterilization, is the legal minimum
• EPA-registered hospital disinfectant required
• UV cabinets are for storage only, not disinfection
• Single-use items disposed instead of disinfected

Memory trick: Sterilization/autoclave = overkill for salons, not required by CA law

Cal/OSHA requires employers to train employees on chemical hazards, safe handling, and SDS interpretation, in addition to keeping SDS accessible.

• Training required at hire and when new hazards introduced
• Covers labels, SDS sections, and emergency procedures
• Part of the broader Hazard Communication Standard

Memory trick: Access alone isn't enough — you must also teach employees to read it.

When handling caustic chemicals like lye relaxers, workers should wear gloves, protective eyewear (goggles), and an apron to guard against splash exposure to skin and eyes.

• Goggles protect eyes from caustic splashes
• Aprons protect skin/clothing from spills
• Gloves alone are insufficient for splash-risk chemical services

Memory trick: 'Gloves guard hands, goggles guard eyes, apron guards the rest.'

The client consultation should be conducted before draping, on dry hair, to accurately evaluate hair and skin condition prior to service.

• Occurs before draping and before wetting hair
• Allows accurate assessment of natural color and texture
• Sets the foundation for the entire service plan

Memory trick: 'Dry first, drape second' keeps the analysis accurate.

The slightly thickened skin under the free edge of the nail plate that seals the nail bed from bacteria and debris.

• Located under the free edge
• Acts as a protective barrier
• Different from eponychium, which is at the base

Memory trick: Hyponychium = 'hidden underneath' seal guarding the free edge.

The stem is the section of hair between the scalp and the first turn of the curl; stem length controls mobility and strength of the curl.

• No stem: circle placed directly on base, tightest curl, least mobility
• Half stem: circle placed half off base, medium curl and mobility
• Full stem: circle placed completely off base, loosest curl, most mobility

Memory trick: 'No stem, No move' — no stem curls stay glued to the scalp with zero mobility.

A California cosmetologist must have their individual license displayed or readily available at their workstation for inspection by the Board or clients.

• Applies to every practicing individual licensee, not just salon owners
• License must be current (not expired) to be valid
• Inspectors can request to see it at any time during an inspection
• Different from the establishment license, which covers the business location

Memory trick: Your badge stays at your chair, ready for the inspector's stare.

California regulations require nonporous implements like perm rods to be cleaned of debris then fully immersed in an EPA-registered hospital-grade disinfectant for the required contact time before reuse.

• Applies to all nonporous multi-use tools
• Clean first, then immerse fully in disinfectant
• Must use EPA-registered hospital-grade solution

Memory trick: 'Clean then Cover Completely' in disinfectant before reuse

A hair removal method using a twisted cotton thread rolled across the skin; the twist of the thread traps and pulls hairs out at the follicle level.

• No chemicals or heat involved
• Twisted coils of thread trap multiple hairs at once
• Commonly used for eyebrows and facial hair, precise shaping

Memory trick: Twist traps — the coiled thread is the tiny lasso for hair.

Flammable products like acetone must be stored away from heat, sparks, and open flames, ideally in approved, ventilated storage areas.

• Space heaters and outlets are ignition risks
• Store away from direct sunlight and heat
• Keep containers closed when not in use

Memory trick: Acetone and heaters don't mix — keep flammables far from fire!

An infection control approach requiring that all clients' blood and body fluids be treated as potentially infectious, regardless of apparent health status.

• Applies to every client, not just visibly ill ones
• Based on inability to identify infection by appearance
• Includes glove use, disinfection, and proper waste disposal

Memory trick: You can't see a virus — treat everyone the same, every time.

Cyanoacrylate lash adhesives emit fumes that can irritate eyes and respiratory passages; proper ventilation and minimal bottle exposure reduce this risk.

• Use fans or air purifiers during application
• Keep adhesive capped between uses
• Avoid pointing bottle opening toward client's face

Memory trick: Fresh air keeps fumes fair.

Colors formed by mixing two primary colors in equal parts on the color wheel.

• Green = blue + yellow
• Orange = red + yellow
• Violet = red + blue

Memory trick: Primary colors 'ROY-B' blend to make secondary 'GOV' (Green, Orange, Violet).

Chemically treated or highly porous hair has a weakened cuticle and requires lower thermal styling temperatures with protective products to avoid further damage.

• Porous, damaged hair absorbs heat faster and is more prone to breakage
• Always use heat protectant and perform a strand test on compromised hair
• Lower iron temperatures (around 300°F or less) are recommended for fine, fragile, or chemically treated hair

Memory trick: 'Porous hair, pump the heat lower.'

The diameter of the perm rod is the primary factor controlling the size of the resulting curl; smaller rods create tighter curls.

• Smaller rod diameter = tighter, smaller curl
• Larger rod diameter = looser, larger wave
• Other factors (porosity, wrap technique) fine-tune the result

Memory trick: 'Skinny rod, skinny curl'

A skin condition characterized by chronically dilated, visible capillaries, often on the cheeks and nose, caused by weakened vessel walls.

• Avoid heat, steam, and vigorous stimulation during facials
• Use cool, calming, gentle products and light effleurage
• Often associated with rosacea and sensitive skin

Memory trick: 'Couperose = Cool it, don't Cook it' — avoid heat that expands vessels.

Requires employers to maintain a workplace free of recognized hazards likely to cause serious harm, even without a specific applicable standard.

• Acts as a catch-all safety requirement
• Applies when no specific standard exists
• Employers must still comply with specific standards where applicable
• Enforced alongside standards like Hazard Communication and Bloodborne Pathogens

Memory trick: General Duty Clause = the catch-all safety net when no specific rule exists

Round bacteria that grow in chain formations, associated with infections such as strep throat.

• Chain arrangement of cocci
• Cause strep throat and some skin infections
• One of three main coccus arrangements

Memory trick: 'Strep' sounds like 'string' — a string/chain of beads.

A painless separation of the nail plate from the nail bed, usually not contagious, often caused by trauma, chemicals, or medication.

• Not an infection and not contagious
• Technician can service cautiously, avoiding the loose area
• Different from infections like paronychia or onychomycosis

Memory trick: Onycholysis = 'nail lets loose' painlessly from the bed.

Eumelanin produces brown/black pigment; pheomelanin produces red/yellow pigment; both are produced by melanocytes in the hair bulb.

• Eumelanin = brown/black pigment
• Pheomelanin = red/yellow pigment
• Melanocytes produce melanin in the hair follicle

Memory trick: 'Eu' for 'Ebony/brown', 'Pheo' for 'Fiery red-yellow'.

California regulations require disinfected tools to be kept dry and enclosed in a covered, sanitary container until used again.

• Storage container must be clean and labeled 'disinfected'
• Implements must be completely dry before storage
• Open or wet storage risks recontamination
• Separate containers used for 'used' vs 'disinfected' tools

Memory trick: 'Cover it like a treasure' — keep tools sealed and dry.

Previously lightened or color-treated hair has higher porosity than virgin hair and requires a gentler solution, shorter processing time, and frequent test curls to avoid overprocessing.

• Lightened hair has raised, damaged cuticle
• Increased porosity absorbs chemicals faster
• Requires milder solution and shorter processing with monitoring

Memory trick: 'Porous hair Panics fast' — go gentle and check often