6 Best Biotin Supplements for Hair Growth Dietitians Say Work 2024

glamour.com:

and . It's essential for the process by which cells create proteins. “Since our hair and nails are made of keratin, a type of structural protein, a biotin deficiency will negatively impact hair and nail growth,” says , director of cosmetics dermatology at Montefiore Einstein Advanced Care.

One major symptom of biotin deficiency is alopecia (hair loss). But here's the kicker: If you aren't deficient in biotin (most people aren't, FYI), taking biotin pills probably won't do much for you.

The data on taking biotin to , skin, and nails just isn't there. But anecdotally, many reviewers we spoke to say saw improvements in these areas after taking biotin—even when they're not deficient.So what's a gal looking to grow her strands to do?

We spoke with dermatologists and dietitians for their recommendations on the best biotin supplements for hair growth. And a quick reminder that supplements are not FDA-regulated, so it’s always best to do your own research and check in with a doctor before adding one to your diet, especially if you take any medications.What exactly is biotin?Biotin goes by two other names—vitamin B7 and vitamin H—and plays a role in the production of keratin, a protein essential for healthy skin, hair, and nails.