White E – contains a pure source of naturally derived Vitamin E the most powerful source of Vitamin E. The main effect of White E is an antioxidant – used naturally in the body to maintain muscle function & contraction powder. Vitamin E is also vital for the functioning of the immune system & for maintaining energy. White E is suitable for nervy dogs dogs that are prone to cramping strengthening the immune system & improving fertility in brood bitches & stud dogs.