A.C. Grace Unique E Mixed Tocopherol Concentrate delivers all four natural tocopherol isomers (d-alpha, d-beta, d-gamma, d-delta Tocopherol) in their naturally occurring ratios from soybean oil — the gold standard natural Vitamin E supplement that has been the research and clinical community's preferred Vitamin E form since the brand's founding in 1962. 60 softgels.Natural mixed tocopherols provide Vitamin E activity across multiple biological pathways that isolated d-alpha tocopherol alone cannot: d-gamma Tocopherol provides the strongest anti-inflammatory activity and nitrogen reactive species neutralisation; d-delta Tocopherol provides the most potent antioxidant and cancer-preventive polyphenol activity per gram; d-alpha Tocopherol provides the primary lipid-phase free radical chain-breaking antioxidant activity. Research consistently shows that natural mixed tocopherols produce superior antioxidant outcomes compared to isolated alpha tocopherol. Free of synthetic dl-alpha tocopheryl acetate — the form in most commercial Vitamin E products with significantly lower bioactivity. A.C. Grace Company is the original, research-backed manufacturer of Unique E — the gold standard mixed tocopherol Vitamin E supplement providing all eight natural Vitamin E isomers (four tocopherols and four tocotrienols) as they occur in nature, free of synthetic dl-alpha tocopherol. Available at Beauty Riche with same-day shipping.