COSRX has developed its own unique Centella complex named CentellAC-RX formula.After years of experimenting, COSRX CentellAC-RX formula has been perfected to optimize the efficacy of the natural Centella ingredient which not only treats acne but also heals the damages that have already been made to the skin. This special formula allows the skin to return to its healthy state through a new methodical approach to solving acne-related concerns such as controlling excessive sebum and balancing skin's natural pH level. The patch that not only helps the acne disappear without a scar but also helps soothe and calm the spot. Oval shaped patch which is suitable for covering several acne spots at once and for covering body acne. 3 different size patches can cover from small pimples to cystic acne. The border of the patch is thinner to strongly adhere to curved areas such as jawline and hairline