A full-spectrum UVA blocker; inhibits UVA-induced melanin and tyrosinase activity in B16/F10 melanoma cells (IC30s = 21.94 and 24.25 μM, respectively); inhibits UVA-induced production of ROS and 8-OH-dG and depletion of GSH in B16/F10 cells (30 μM); increases nuclear translocation of Nrf2 and upregulates ARE in UVA-irradiated B16/F10 cells (30 μM)