"Biotin is a B vitamin-vitamin B7-that plays a role in energy metabolism and helps support healthy hair, skin and nails," says Ross Kopelman, DO, a hair restoration surgeon in New York City.

Biotin Results After 1 Week: How Long Does It Take to Work? You’ve probably heard about the “magic” of biotin for hair growth. Maybe you’ve got a friend or seen a TikTok influencer who ...

Carmen Castilla, MD, is a New York-based board-certified dermatologist specializing in cosmetic and medical dermatology. Biotin, also known as vitamin B7, is a vitamin that our body needs to make ...

This article was medically reviewed by Debra Jaliman, MD, a board-certified dermatologist with a private practice in New York City. Biotin does help with hair growth as long as you have a biotin ...