This active treatment with retinol is especially indicated for oily or acne-prone skin. Kerafnia with retinol, acts helping to free the pores of obstructions and preventing clogging. It is therefore recommended for acne-prone skin. Biolysat Hafnia helps to soothe the feeling of tightness and diffuse redness, providing comfort to the skin. It contains a mattifying principle and is hypoallergenic.