https://www.selleckchem.com/pr....oducts/Bleomycin-sul
A bisresorcinol was isolated as the main constituent of 's trunk (Proteaceae). Recently, resorcinol is applied as an active whitening agent in various cosmetic products. Because of the structural mimic to resorcinol, benefits of the bisresorcinol as an aging-enzyme antagonist were demonstrated in this study. The bisresorcinol was purified from the crude ethanolic extract of 's trunk by solvent extraction and preparative chromatography, respectively. Inhibitory activity on collagenase, elastase, and tyrosinase of the compound w