Written Laser Hair Removal Practice Exam 2025 – All-in-One Guide to Master Your Certification!

Laser hair removal is most effective during the anagen phase, which is the active growth stage of the hair cycle. During this phase, hair follicles are robustly engaged in growth, which means they contain a significant amount of melanin. The laser targets this melanin to effectively disable the hair follicle.

In contrast, the telogen phase, which is the resting stage, and the catagen phase, which is the transitional stage, are not ideal for laser treatments because during these periods the hair is either not actively growing or is in the process of shedding. Therefore, the hair is less likely to absorb the laser energy effectively, reducing the treatment's efficacy.

The resting phase may also refer to when hair follicles are not producing visible hair or are inactive, further diminishing the effectiveness of laser treatments. Thus, focusing treatment during the anagen phase is crucial for optimal outcomes in laser hair removal.