Natural Factors Whole Earth & Sea Sunflower Vitamin E 400 IU - Derived from non-GMO sunflower seed oil, the formula is 100% soy-free and ideal for anyone looking to avoid soy-based vitamin E supplements. Vitamin E helps maintain cardiovascular and immune health, benefits the skin and eyes, helps prevent premature aging and chronic degenerative disease, and may also play a role in maintaining cognitive health. It also protects other vitamins (such as vitamins A and C) from oxidation. Vitamin E is particularly important for people with active lifestyles, as physical exertion increases production of free radicals.