3’-Hydroxygenkwanin is a flavonoid that has been found in B. balsamifera and has antioxidant and anticancer activities.^1,2 It scavenges superoxide anions in a cell-free assay when used at a concentration of 100 µM.¹ 3’-Hydroxygenkwanin (25 and 50 µM) decreases the levels of EGFR and phosphorylated EGFR in, and reduces viability of, PC-9 and H1975 non-small cell lung cancer (NSCLC) cells.² It also decreases intratumoral levels of EGFR and phosphorylated EGFR and reduces tumor growth in an H1975 mouse xenograft model when administered at a dose of 1 mg/kg.