ISDIN Oily Skin Acniben Night Concentrate Anti-Imperfection Serum 27ml is a serum that helps to restore radiance to oily and acne-prone skin. Its formula is enriched with zinc PCA, niacinamide and retinaldehyde; ingredients that help reduce and prevent the appearance of pimples, blackheads or residual marks on the skin. It also helps to reduce skin irritation. Contains 27ml.