Syringetin is a methylated flavonol that has been found in G. biloba and has diverse biological activities.^1,2,3 It inhibits α-glucosidase and scavenges radicals in a Trolox equivalent antioxidant capacity (TEAC) assay (IC50s = 36.8 and 12.3 µM, respectively).^1,3 Syringetin (50 µM) reduces the proliferation of, induces cell cycle arrest at the G2/M phase in, and decreases cyclin D1 and COX-2 levels in, Caco-2 colorectal adenocarcinoma cells.² It increases the lifespan of C. elegans when used at a concentration of 100 µM.³