(Equine America) Shoer's Friend delivers a potent 25 mg of biotin in just a 4 oz. daily dose. It's packed with a concentration of 15 additional nutrients essential for promoting the health of your companion's hoof and coat. Shoer's Friend includes lysine, methionine, zinc, potassium and more. Feed 4 oz. daily. When desired results have been achieved, you may reduce to 2 oz. daily. Pellets.