Looking for the best biotin supplement? We reviewed nine RD-approved options that support hair, skin, and nails. See our top ...

Biotin supports several important functions in the body, but do you need to take it as a supplement? Experts weigh in.

Biotin supplements are taken when there is a biotin deficiency in the body. While most people get their dose of biotin from their daily diet, it is believed that additional biotin, in the form of ...