Anti-inflammation Effects of Phellodendrin cortex Water Extract Application in Photo-aged Hairless Mice

This study was intended to evaluate the alleviating effects of Phellodendrin cortex water extract (PCWE) on skin inflammation in hairless mice. Skin inflammation was induced by UVB irradiation and squalene monohydroperoxide (Sq-OOH) application to the back skin of hairless mice for 6 weeks. And at the same time, saline (C), jojoba oil (VC), PCWE (E) and 0.01% retinoic acid diluted with polyethylene glycol (PC) were applied topically twice a day,...