Iron

Does iron help with hair loss?

Updated 9 Nov 2026

Short answer

The evidence is weak. A 2006 review found that studies on iron deficiency and hair loss disagree.[1] It found not enough evidence to give iron to people with hair loss who have low iron but no anemia.[1] A 2024 review of vitamins and minerals in pattern hair loss called the evidence not entirely consistent.[2]

Sources (2)

  1. The diagnosis and treatment of iron deficiency and its potential relationship to hair loss. Trost LB, Bergfeld WF, Calogeras E J Am Acad Dermatol, 2006. PMID 16635664
  2. Micronutrients and Androgenetic Alopecia: A Systematic Review. Wang R, Lin J, Liu Q, Wu W, Wu J, Liu X Mol Nutr Food Res, 2024. PMID 39440586

More about iron

What is iron?Which foods contain iron?How long does it take for iron supplements to work?What is iron used for?What are the signs of iron deficiency?Is iron safe?

For education; not medical advice. Talk to a doctor before you start, stop or change a supplement.