Some please correct me if I am wrong but isn't there a specific type of Vit. E that is the preservative - T-50 http://www.fromnaturewithlove.com/product.asp?product_id=oilvitamine&searchflag=1 T-50, natural mixed tocopherols (isolated from vegetable oils), is a natural, heat stable antioxidant that protects food and cosmetic products from oxidation. If you need to add vitamin E oil to protect your formulation from rancidity, use our T-50 Vitamin E oil instead of our 250IU/g, 1000IU/g and 1400IU/g Vitamin E oils. While the alpha tocopherol in the 250, 1000, and 1400IU/g oils is wonderful as an in-vitro anti-oxidant, studies show that the gamma tocopherol in the Vitamin E T-50 oil is a better anti-oxidant for oils/lipids in cosmetic formulations. T-50 has a higher content of gamma tocopherols and can be used at a rate of .04% or 400ppm to adequately protect your oils. Although T-50 is not an organic product, it is allowed for use in "organic" or "made with organic material" products.