Biotin, Also known as Vitamin B7, is a water-soluble B-complex vitamin that plays a key role in converting food into energy and supporting keratin production. Since keratin is a fundamental protein in hair, skin, and nails, biotin is often marketed as a go-to supplement for hair growth. But does it https://charlievzcfh.plpwiki.com/6688841/biotin_supplements_for_hair_growth_do_they_really_work