Colorado Cosmetology Written Practice Exam

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Which phase is known to be the active growth phase of hair?

Anagen
Catagen
Telogen
Transitional

The correct answer is: Anagen

During the anagen phase, hair actively grows and cells in the hair follicle rapidly divide, producing new hair cells. This is when hair grows the fastest and is considered to be the active growth phase of hair. The B, Catagen phase is a short transitional period between the anagen and telogen phases where hair growth stops and the follicle shrinks. The C, Telogen phase is a resting phase where hair is no longer growing and eventually falls out. The D, Transitional phase is not a known phase in the hair growth cycle.