Iron Horse Hoof Well Grafter The horse’s natural stomach acid The horse’s natural stomach acid also acts as a barrier against micro organisms and parasites entering further down the digestion system a versatile accessory designed for effortless wear Biotin is a water soluble vitamin that is used primarily in equine nutrition as a co enzyme to aid the synthesis of other nutrients (particularly amino acids) so that the effective production of keratin can take place for the good of both hoof and hair quality Poor hoof or coat quality may be a symptom of copper deficiencies which is why this mineral is often provided in supplemental levels to assist in addressing this