Moderate evidencemineral
Iron for Hair Thinning
Iron is essential for hair follicle matrix cell proliferation, which has one of the highest cell turnover rates in the body. Low ferritin starves the follicle of oxygen and nutrients, causing telogen effluvium (diffuse shedding).
How strong is the research?
Moderate evidence
Based on cohort study data — strong observational evidence.
How much to take
18–36 mg
MUST test ferritin levels (target >70 ng/mL for hair regrowth). Iron deficiency is the most common correctable cause of hair loss in women.
When to take it
Best taken: empty stomach