Shur Hoof Supplement from Farnam. Pellet supplement helps strengthen weak, cracked, dry hooves with a combination of key hoof health ingredients. Sure Hoof contains essential amino acids lysine (min 0.44%) and methionine (min 0.265%) for growth and tissue and 20 mg biotin per serving. Directions: Adult horses - 1 oz daily; Foals, weanlings and ponies - 1/2 oz daily; Pregnant and nursing mares- 2 oz daily. 1 oz scoop enclosed; 45 day supply for adult horses. Green color-coded pellets for accurate feeding and easy identification.