Wisconsin Cosmetology Practice Exam 2025 – The All-in-One Guide to Master Your Certification!

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What is the duration of the catagen phase in hair growth?

2 to 3 weeks

The catagen phase, which is the transitional stage in the hair growth cycle, typically lasts for about 2 to 3 weeks. During this phase, hair follicles undergo a series of changes as they prepare to enter the resting phase, known as the telogen phase. The hair stops growing and detaches from the blood supply, leading to apoptosis, or programmed cell death, of the hair matrix cells. Understanding this phase is crucial for cosmetology professionals, as it impacts hair treatments and overall hair health.

The other durations presented in the options significantly exceed the established timeframe for the catagen phase, reflecting incorrect representations of the hair growth cycle.

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1 to 3 months

3 to 6 years

6 to 12 months

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