Biotin
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Biotin, Vitamin B7, known for its role in promoting keratin production, may support hair growth in people whose hair loss is due to biotin deficiency. In a recent study, biotin deficiency was found in 38% of women complaining of hair loss
Note: While biotin has no effect on thyroid hormone levels or thyroid function in the body, biotin can interfere with the measurement of hormone levels in the laboratory, causing them to be inaccurate.
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