For most vitamin formulations, there is only one kind of vitamin E. But with our Super Vitamin E, you get the more bioavailable form, has proven far superior. Super Vitamin E is distributed through the body much better than the synthetic form. The reason is that specific carrier proteins in the liver selectively bind to the more absorbable form of vitamin E and transport it through the blood to cells throughout the body. These carrier proteins only recognize a portion of synthetic vitamin E and ignore the remainder. Japanese researchers gave the bioavailable or synthetic vitamin E to young women to measure how much vitamin E actually made it into their blood. It took only 100 mg of Super Vitamin E to produce blood levels that required 300 mg of synthetic vitamin E. Life Extension’s Super Vitamin E softgels provide only the better-utilized, bioavailable form of vitamin E.