Moderate evidencemineral
Selenium for Hair Thinning
Required for thyroid hormone synthesis and conversion of T4 to T3. Selenoprotein P supports hair follicle growth.
How strong is the research?
Moderate evidence
Based on cohort study data — strong observational evidence.
How much to take
50–100 mcg
Deficiency impairs thyroid function. Avoid exceeding 200 mcg/day without testing.
When to take it
Best taken: with food