Biotin is a B-vitamin that helps your body convert food into energy. In addition to this, Biotin is also essential and plays a key role in the health of your hair, skin, and nails. For this reason alone, taking a Biotin supplement could help alleviate hair thinning problems as Biotin encourages thicker and faster hair growth. To remedy hair thinning, here are the top 14 biotin supplements that will thicken your hair: