Can biotin supplements really strengthen nails or improve hair? Can other supplements help?

Written by Tod Cooperman, M.D.

Updated May 23, 2024 ⓘ

Supplements for Brittle Nails -- healthy nails

Answer:

There is some evidence that biotin supplementation may strengthen brittle nails, but there is little evidence it improves hair growth or texture. Be aware that many nail and hair formulas contain very high doses of biotin, which can interfere with certain medications and laboratory tests.

Sign in as a member for more details, including doses of biotin that might be beneficial for nails. Also, learn whether other supplements — including MSM, silica (an ingredient in BioSil), collagen, magnesium, vitamin C, or iron — are beneficial for nails, and find out which vitamin deficiencies can cause hair loss. In addition, find out if Biothin is the same as biotin.

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