Osmosis Pur Medical Skincare Clarify Vitamin A Blemish Serum balances your complexion with soothing botanical extracts and essentials oils. Mandelic and lactic acids may make your skin more sensitive to the sun, but they remove the dead skin cells and clogged pores that cause breakouts. Retinal reaches deep down within your texture to promote cellular growth. Cucumber soothes and softens your overall palette.