The Science Behind Female Hair Growth and Estrogen

13 Apr 2025 · 1 min
0:50

In this German‑language YouTube segment, the speakers explain how estrogen protects women’s hair by keeping the majority of hair follicles in the anagen (growth) phase. They outline the hair‑follicle cycle—anagen lasting 2–7 years, catagen as a brief transition, and telogen lasting a few months—stating that normally 80‑85 % of hairs are in anagen and 5‑15 % in telogen. Elevated estrogen levels prolong the anagen phase, which leads to greater hair density, thickness, and overall health.

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