Etude SoonJung pH 5.5 Relief Toner is a low-irritant, mildly acidic toner designed to soothe skin heated by external stressors, featuring panthenol for calming and madecassoside for damage care. It incorporates cooling relief™ ingredients to alleviate heat and calm stressed skin, maintaining a healthy skin condition with its similar-to-skin pH level of 5.5.