Improves dry skin, dull coat, thin mane and tail. Get a "show quality" coat in just 5 weeks! Gen-A-Coat is not a liquid oil and a safe way to give horses fatty acids. To be sure your horse safely gets biotin and fatty acids, feed one scoop of Gen-A-Coat, containing 8 mg of biotin and 3 grams of the essential fatty acids, linoleic acid and linolenic acid.