Natural Factors - Clear Base Vitamin E 400 IU - 60 Softgels Natural Factors Clear Base Vitamin E easy-to-swallow softgels contain 400iu (International Units) of pure vitamin E in the form of d-alpha tocopheryl acetate, derived and isolated from 100% natural sources. Clear Base is the purest form of vitamin E available, free from any impurities or residues. It is well tolerated by those with sensitivities to soya products. Vitamin E is a fat-soluble vitamin and antioxidant that protects cell membranes and prevents free radical damage, supporting the cardiovascular system and general health. Vitamin E's ability to protect cell membranes is important for people in polluted environments and those with active lifestyles. Experts recommend daily supplementation of vitamin E as it is difficult to get enough through diet alone. Natural Factors priority is enhancing people's health. They offer more than 300 different formulas available exclusively at natural health stores. They are family-owned, Canadian-based business. They have produced and sold quality supplements to North Americans for more than 50 years. They grow their own herbs, organically and process them fresh from the fields. They test and standardize herbs for total quality control. Their science team includes medical doctors, naturopathic physicians, researchers and herbalists from around the world. They create new, condition-specific formulas that are clinically proven to work. Their laboratory facilities comply with Good Laboratory Practices and are among the finest in North America. They meet or exceed Canadian Government Good Manufacturing Practices (GMP) guidelines and all Health Canada and FDA regulatory requirements Factor Farms:A quality herbal product starts with the highest quality fresh organic plant material. The efficacy of herbal products has always been affected by growing conditions, harvesting, processing and storage.