What is Biotin Good For, Exactly?

Story by Cheyenne Buckingham writing for Shape

The B vitamin does so much more behind the scenes than you may realize.

Brittle nails, fraying split ends, dull skin: These cosmetic details may encourage you to ask your doctor about starting a biotin supplement. But what exactly is biotin, and apart from potentially making your hair glossier, has science indicated it provides other health benefits?

To read more, click here.