The supplement with the highest concentration of biotin on the market is Biotin Hoof Blast. It contains 100 mg per 2 oz. of biotin.
Biotin is a water-soluble vitamin. It is essential for healthy hair, skin and nails, as well as for metabolism of carbohydrates, proteins and fats. The best known function of biotin is the formation of fatty acids from carbohydrates. A deficiency in biotin can cause poor growth of hair and skin, cracked hooves, and alopecia.