Lierac Sébologie Blemish Correction Keratolytic Solution is perfect for preparing the skin before using other renewing products and care products for combination and oily skin - results confirmed under dermatological control. It unclogs and tightens pores, preparing the skin for further care and the skin becomes perfectly smooth after the first application. Reduces sebum production, visibly reduces the appearance of pore size and number of blackheads, thereby improving the overall appearance of the skin.