Summary:Vitamin E exists in eight different forms ("isomers"): alpha, beta, gamma and delta tocopherol; and alpha, beta, gamma and delta tocotrienol. Alpha-tocopherol is the most active form in humans.Scientific Evidence:Uses These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider. Grade* Vitamin E deficiency AAllergic rhinitis (nasal allergies) CAnemia (not enough red blood cells) CAngina (chest pain) CAntioxidant CAtherosclerosis (clogging and hardening of arteries) CBreast cancer CBreast cancer-related hot ....