Super Cell Builder is a classic, proven blood builder. This formula has been used on racetracks and arenas since 1976. It is a high iron supplement fortified with trace minerals and vitamins that not only supports normal red blood cell production, but also helps promote healthy cells with high hemoglobin content. For equine use only. Contains min 0.256% magnesium, 0.353% potassium, 0.133% copper, 0.371% zinc, 1.102% iron, 0.002% cobalt, 0.142% manganese, 0.751% choline, 0.001% iodine, 43,000 IU Vitamin A, 7,250 IU Vitamin D-3, 85 IU Vitamin E, 200 mcg. Vitamin B-12, 120 mg thiamine, 145 mg riboflavin, 325 mg niacinamide, 45 mg pyridoxine, 20 mg folic acid, 1.5 mg selenium, 1,025 mcg. Biotin, and 100 mg D-pantothenic acid.