The non-synthetic form of alpha-tocopherol in our Super Vitamin E is distributed throughout the body more efficiently than the synthetic version. Specific carrier proteins in the liver selectively bind to the more absorbable form of vitamin E (non-synthetic), transporting it through the blood to your cells. These carrier proteins only recognize a portion of synthetic vitamin E, ignoring the rest. Backed by research : Japanese researchers compared the synthetic and non-synthetic forms of vitamin E by supplementing young women with either form for one month and measuring vitamin E levels in their blood. It took only 100 mg of the natural form to produce the same blood levels as 300 mg of synthetic vitamin E. Bioavailability is important : So why does it matter? Vitamin E offers plenty of health benefits: it can help boost immune function, inhibit inflammation to support whole-body health, reduce oxidative stress and promote brain health.