Nature's Bounty Biotin is a Vitamin Supplement that helps with metabolic functioning and more. The supplement works to nourish hair, skin, and nails as well. Its main featured ingredients, Biotin and Vitamin B are naturally obtained from soy, vegetables and oatmeal. This biotin supplement also helps with sufficient production and consumption of energy, as it encourages the essential breakdown of fats, protein and carbohydrates. Moreover, healthy levels of biotin in body prevent weakness and hair loss.