Mega-Sel Liquid Formula For HorsesProduct Description Mega Sel Liquid Formula For Horses Ingredients Dl Alpha Tocopheryl Acetate (Source Of Vitamin E), Sodium Selenite, Etc Key Features The sore muscle solution, patented liquid, formulated for excellent absorption of antioxidants selenium and vitamin e Shown to be more effective than powder or crumble selenium products Contains premium ingredients for better results Also for use on horses prone to tying up syndrome Made in the usa