The role of biotin in hair and nail disorders: a systematic review
Patel DP, Swink SM, Castelo-Soccio L
Published in Skin Appendage Disorders
Methodology
Systematic review of all published clinical cases and trials of biotin supplementation for hair and nail disorders.
Key Findings
Every case of clinical benefit occurred in patients with an underlying biotin deficiency or inherited metabolic disorder; no evidence supported use in healthy people.
Conclusions
Biotin does not improve hair or scalp health without deficiency.
Limitations
Case-report dominated; no placebo-controlled trials in healthy adults.
Supplements Studied
Every case of clinical benefit occurred in patients with an underlying biotin deficiency; no evidence supported use in healthy people
Outcomes Measured
Every case of clinical benefit occurred in patients with an underlying biotin deficiency; no evidence supported use in healthy people
Study Details
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This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.