Hair loss research, explained

Hairloss Labs is the article library of hairloss.org: plain-English guides to the causes of hair loss, the medical treatments with real evidence behind them, and what hair restoration surgery involves. New articles are added every day.

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1 article in Nutrition & hair

Nutrition & hairVitamins and Hair Loss: Biotin, Iron, Vitamin D and What HelpsWhich vitamin deficiencies cause hair loss, whether biotin works, what blood tests to ask about, and why more supplements are not always better.November 9, 2026 · 6 min read

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Educational information, not medical advice. Talk to a doctor or dermatologist about your own hair loss before starting or stopping any treatment.