A polyphenol; decreases the expression and protein levels of iNOS at 10 μM in HCASMCs treated with a cytokine mixture; decreases protein levels of tyrosinase and MITF in B16F1 cells; inhibits melanogenesis in B16F1 cells and decreases tyrosinase activity in cell lysates at 25 μM; reduces triglyceride levels in sodium oleate-induced hyperlipidemic HepG2 cells at 20 and 40 μM