How Hair Cycle Phases Impact Laser Hair Removal Success
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The effectiveness of photodepilation is directly influenced by the biological hair cycle of follicles. Hair does not grow continuously—it progresses through three biological phases: growth phase, transitional phase, and telogen. Only hair in the anagen phase is vulnerable to laser treatment. During anagen, the hair root is securely embedded and connected to the vascular network, эпиляция глубокого бикини цены allowing laser energy to be captured by the colorant in the hair shaft and channeled into the follicle. This thermal energy damages the follicle, blocking new hair development.

Hair in the shedding prep phase is moving out of growth into dormancy. The root begins to contract and disconnects from the nutrient pathway, rendering it much less receptive laser energy. In the shedding phase, the hair is no longer growing and has fully detached from the root. At this stage, no direct connection to the root, so the laser has virtually no ability to affect the structure.
Because individual strands are actively growing simultaneously, a one appointment can only reach a fraction of the total hair in a given area. On average, only 15 to 30 percent of hair is undergoing anagen at any given moment. This is why a series of sessions are essential—typically scheduled 28 to 56 days apart—to intercept each strand when it reconnects to the blood supply.
Factors such as hair color, skin type, and the treated region also significantly influence outcomes. Thick, pigmented strands absorbs laser energy with greater potency than low-melanin hair. Additionally, areas like the underarms and bikini line typically exhibit a higher percentage of hairs in anagen, which is why they often respond faster compared to the face or back.
Understanding these phases enables accurate anticipation. Laser hair removal is not a single-session cure. It demands persistence and regularity. Delaying treatments or believing in overnight changes can lead to disappointment. By synchronizing sessions to the biological growth rhythm, clients optimize the likelihood of long-term reduction and hair-free texture.
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