Mediheal is one of the biggest and most beloved Korean skincare brands. Using 3-O-ethyl ascorbic acid, a gentle derivative of vitamin C, this serum helps brighten skin tones. PHA and LHA are also ...

F or years, retinol has carried a certain seasonal stigma––as soon as the first heatwave hits, it’s exiled from skincare shelfies nationwide under the belief that you should ...