California Cosmetology Written ExamHair RemovalMedium

A cosmetology instructor is teaching students about the natural hair growth cycle. What is the correct chronological order of the three phases of hair growth?

  1. ACatagen, Anagen, Telogen
  2. BAnagen, Telogen, Catagen
  3. CAnagen, Catagen, Telogen
  4. DTelogen, Anagen, Catagen
Show answer & explanation

Correct answer: C. Anagen, Catagen, Telogen

Hair growth follows a repeating cycle: Anagen (active growth), followed by Catagen (transitional, follicle shrinks), followed by Telogen (resting, hair sheds), and then the cycle repeats with a new Anagen phase.

Why the other options are wrong

  • A. Reverses the first two phases; Anagen must come before Catagen.
  • B. Skips Catagen's placement, putting Telogen before Catagen incorrectly.
  • D. Places resting before active growth, which is incorrect order.

Hair Growth Cycle Order

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

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