Resveratrol, a natural polyphenol that possesses anti-oxidant, anti-inflammatory, cardioprotective, blood-sugar-lowering, antiaging, and anti-cancer properties. It has a wide spectrum of targets including cyclooxygenases(i.e. COX, IC50=1.1 μM), lipooxygenases（LOX, IC50=2.7 μM, kinases, sirtuins, c-IAP1, c-IAP2, livin and XIAP. Resveratrol regulates gene transcription via activation of the stimulus-regulated protein kinases Raf and ERK and the stimulus-responsive transcription factors TCF and Egr-1.

Polygalacin D shows anti- proliferation, anti-inflammary, and hepatoprotective activities, it can inhibit the expression of lipopolysaccharide (LPS)-induced iNOS and COX-2 protein and mRNA without an appreciable cytotoxic effect on RAW 264.7 macrophages, and can suppress induction by LPS of pro-inflammatory cytokines such as prostaglandin E2 (PGE2). Polygalacin D is a triterpenoid saponin. It has a role as a metabolite.