I bought a bottle of Biotin yesterday. It is supposed to help promote hair growth, strengthen nails, and clear up the skin. I would like to have longer locs and clearer skin. I'll see how this works out. I also plan to drink plenty of water because Biotin is water soluble and if you don't drink enuff water you'll break out. Taking this vitamin will be my excuse to drink plenty of water. I'll keep you all posted.