Suitable for Vegetarians. Source Naturals R-Lipoic Acid is a natural form of lipoic acid that your body can synthesize and safely metabolize. It may be better absorbed and more effective as antioxidant than alpha-lipoic acid. R-lipoic acid by itself may be 10 times more effective than other forms of lipoic acid and has been called the "mitochondrial antioxidant" because it is a key component of mitochondrial dehydrogenase complexes which may help to slow the natural aging process in animals. Also animal research has shown that R-lipoic acid can increase or maintainlevels of other antioxidants including CoQ10 vitamin C vitamin E and glutathione which may decline with age more effectively than other forms of lipoic acid.
"I've read several articles on how this supplement is "so much" better than lipoic acid but I can't say that I've noticed any difference. Maybe the long term benefits will be better but can't say much for now. I've been taking this on and off for years."
"My physician recommended I take R-Lipoic acid rather than alpha-lipoic acid; and he specified Source Naturals as a "good brand". My health has significantly improved since I was given a prescribed supplement regimen."