Alaska Hairdresser and Barber Certification Practice Exam 2025 – The All-in-One Guide to Exam Success!

The primary hair growth cycles include anagen, catagen, and telogen, which are fundamental to understanding the hair growth process.

The anagen phase is the active growth phase of hair follicles, where the cells divide rapidly, leading to hair elongation. This phase can last several years and determines the length of the hair.

Next is the catagen phase, which is a transitional stage. During this time, hair growth slows, and the hair follicle shrinks, detaching from the dermal papilla, which supplies nutrients to the hair. This phase lasts for a few weeks and marks the end of active hair growth.

Finally, the telogen phase is the resting stage, where hair is not growing but may remain in place until it falls out and is replaced by new hair beginning its growth cycle again. This phase lasts several months.

Understanding these cycles is crucial for hairdressers and barbers, as they can better identify hair growth patterns and inform clients about hair health and treatments. The other choices mention exogen or growth and shedding phases, which do not accurately represent the primary phases recognized in hair biology.