Biotin Vitamins 10000 mcg for Hair Growth!!! Finally! This is my long awaited review on Biotin for hair growth….my second attempt at this drugstore growth aid. Never hurts to try again right? Related posts: Biotin Update, Hair Update, Acne Update Biotin For a Healthy Growing Hair by Dorothy Curry Vitamins for Healthy Hair Growth: Biotin and Vitamin E Will biotin vitamins help repair damaged hair?