This is an ingredient of CyoGenX. Seems it does alot. But last around 30-60minutes!

Metabolism and Bioavailability

Although trans-resveratrol appears to be well-absorbed by humans when taken orally, its bioavailability is relatively low due to its rapid metabolism and elimination (7). When healthy men and women took an oral dose of 25 mg of trans-resveratrol, only traces of the unchanged resveratrol were detected in plasma (blood), while plasma concentrations of resveratrol metabolites peaked 30-60 minutes later at concentrations around 2 micromoles/liter (7, 8). The bioavailability of resveratrol from grape juice, which contains mostly glucosides of resveratrol (piceid) may be even lower than that of trans-resveratrol (9). Information about the bioavailability of resveratrol in humans is important because much of the basic research on resveratrol has been conducted in cultured cells exposed to unmetabolized resveratrol at concentrations that are often 10-100 times greater than peak concentrations observed in human plasma after oral consumption (10). Although cells that line the digestive tract are exposed to unmetabolized resveratrol, research in humans suggests that other tissues are exposed primarily to resveratrol metabolites. Little is known about the biological activity of resveratrol metabolites, and it is not known whether some tissues are capable of converting resveratrol metabolites back to resveratrol (7).

In the test tube, resveratrol effectively scavenges (neutralizes) free radicals and other oxidants (11) and inhibits low density lipoprotein (LDL) oxidation (12, 13). However, there is little evidence that resveratrol is an important antioxidant in vivo (14). After oral consumption of resveratrol, circulating and intracellular levels of resveratrol in humans are likely to be much lower than that of other important antioxidants, such as vitamin C, vitamin E and glutathione. Moreover, the antioxidant activity of resveratrol metabolites, which comprise most of the circulating resveratrol, may be lower than that of resveratrol.