California Cosmetology Written ExamHair RemovalHard

A cosmetologist is threading a client's eyebrows using the traditional twisted-cotton-thread method. Which part of the technique is directly responsible for catching and lifting the hair out of the follicle?

  1. AThe straight, untwisted section of thread
  2. BThe technician's fingers pressing down on the skin
  3. CThe twisted portion of the thread rolling across the skin
  4. DThe tension created by holding the thread ends taut
Show answer & explanation

Correct answer: C. The twisted portion of the thread rolling across the skin

In threading, a doubled strand of cotton thread is twisted and rolled quickly across the skin's surface; the twisted section catches multiple hairs in its coils and plucks them out from the follicle in a single motion.

Why the other options are wrong

  • A. The straight section of thread does not have the coiling action needed to trap hair.
  • B. Finger pressure stabilizes the skin but does not remove the hair itself.
  • D. Tension keeps the thread taut and controlled but is not what physically traps the hair.

Threading Technique

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.

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