Virbac White E LiquidWHITE E Powder and Liquid contains a pure source of naturally derived Vitamin E which is a natural biological antioxidant. White E is beneficial for muscle strength and stamina, horses susceptible to 'tying up', protection against damaging 'free radicals', strengthening the immune system and reproductive function in mares and stallions. White E liquid is apple flavioured and recommended for picky eaters and for horses that sift out powders.