Known Brightening Serum: Thanks to the oligosaccharide actives - niacinamide - provitamin b5 - hyaluronic acid - collagen and herbal extracts it contains, it helps to equalize the skin tone in regular use and helps to gain a bright and vibrant appearance. It is easily absorbed by the skin with its weightless structure. Dermatologically tested. It does not contain paraben. Known Brightening Gel Cleanser: It supports the acquisition of a bright skin appearance and provides a deep and effective cleansing thanks to the oligosaccharide actives - niacinamide - provitamin b5 - hyaluronic acid - collagen and herbal extracts it contains. It suits the natural pH of the skin. It does not contain paraben. Known Brightening Tonic: It supports gaining a bright skin appearance thanks to the active oligosaccharide-niacinamide-hyaluronic acid-collagen and herbal extracts it contains, while gently helping to remove dead skin-oil-dirt and make-up residues. It does not contain paraben.