Resveratrol 100 contains 100 mg of resveratrol (3,4',5-trihydroxystilbenes) and resveratrol glucosides (piceids) extracted from Hu zhang (tiger cane) root. Polygonum extracts have a history of usage in traditional eastern medicine as cardiotonics. Resveratrol 100 provides approximately 90% resveratrol in the trans configuration. As an antioxidant, resveratrol protects cardiovascular function by inhibiting LDL oxidation, upregulating nitric oxide, synthesis, and the integrity of capillaries. Resveratrol has also been studied for its ability to activate Phase 2 detoxification enzymes to maintain healthy cell replication and to modulate genes known to enhance life span.