Fast and effective Hoof includes the highest levels biotin, zinc and methionine. It is always best to feed nutrients in as natural a form as possible. SupaHoof is made from special plant material that contains natural biotin and methionine within the very plants themselves. Alone, this helps support hoof growth but also added into this formula is a very special form of chelated zinc. The essential amino acid methionine is also essential for horn growth. Other plants in this formula help with uptake of calcium, magnesium and phosphorus.