biotin, biotin, and once again biotin. my hair amount doubled during one year taking biotin (10mg per day). I would post pictures but I cannot yet. Ive never had acne and biotin caused me blackheads on my back, on my chest and chin and also acne in my hairline - but it was worth it. I cut the amount to 2.5mg per day bcz I got tired of my chin looking bad, but I will never stop talking it completely. For my baby thin and fine hair it was the best thing that ever happened
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