ingredient information
Tocotrienols – together with tocopherols – compose the vitamin E family. Natural tocotrienols exist in four different forms or isomers, named alpha-, beta-, gamma- and delta- tocotrienol, which contain different number of methyl groups on the chromanol ring. Although all the isomers are important antioxidants due to the ease of donating a hydrogen atom from the hydroxyl group on the chromanol ring to reduce free radicals, each of them has its own biological activity. Furthermore, many studies on test-tube scale indicate that tocotrienols have an anti-cancer effect, especially against skin and breast cancer for the extra three unsaturated bond. Both tocotrienols and tocopherols, whose derivatives are in eight different isoforms, belong to vitamin E. However, some research suggests tocotrienols are more potent in their anti-oxidation and anti-cancer effect than the common forms of tocopherol due to significant differences in chemical structure. The unsaturated side-chain in tocotrienols makes them penetrate tissues with saturated fatty layers more efficiently, making them potentially more useful for cosmetic products. While tocopherols are generally present in common vegetable oils (i.e. soy, canola), tocotrienols, on the other hand, are concentrated in cereal grains (ie. oat, barley, and rye, rice bran), with the highest level found in crude palm oil. Commercial tocotrienols and tocopherols are mainly obtained from natural sources, such as palm or rice bran oil. Source: