What is the main benefit of treating hair during the anagen phase?

Treating hair during the anagen phase is crucial because this is the active growth phase, where hair follicles are most receptive to laser energy. At this stage, the hair is firmly anchored in the follicle and contains the most melanin, which makes it highly susceptible to the laser's effects. The laser targets the melanin in the hair, which absorbs the energy and converts it to heat, damaging the follicle and inhibiting future hair growth.

When treatments are administered in the anagen phase, the effectiveness of the procedure is maximized, as the targeted hair can be adequately destroyed. This leads to more efficient hair removal, maximizing the chances of achieving long-lasting results with fewer sessions. In contrast, treating hair in the other phases, such as catagen or telogen, may result in less effective outcomes because the hair is not in the optimal state for treatment at that time. Thus, the main benefit of targeting hair during the anagen phase lies in the enhanced effectiveness of the treatment.