CLEARSTEM Clarity serum gently exfoliates for smoother, brighter skin. The mandelic acid serum helps to refine and smooth skin while unclogging pores. Formulated with no pore-clogging ingredients, it encourages collagen production with continued use. This gentle exfoliating serum provides visible changes, working to dissolve blemishes. It helps to reveal visibly plumper and firmer skin.