Cosmetic composition (I) comprises: in a medium, a combination of at least one monosaccharide comprising mannose, and/or rhamnose, and at least one additional compound comprising C-glycosides and/or their derivatives. An independent claim is included for a device comprising the combination of monosaccharide and at least one additional compound, where the device is adapted for intraepidermal, intradermal and/or subcutaneous injection. ACTIVITY : Dermatological Endocrine-Gen. MECHANISM OF ACTION : Procollagen I synthesis stimulator Collagen IV synthesis stimulator Collagen VII synthesis stimulator Laminin V synthesis stimulator. Tests details are described but no results given.La présente invention concerne une composition, notamment cosmétique et/ou dermatologique, comprenant dans un milieu physiologiquement acceptable, lassociation dau moins un monosaccharide choisi parmi le mannose, le rhamnose et leur mélange, et dau moins un composé additionnel choisi parmi les C-glycosides, leurs dérivés et leurs mélanges. La présente invention concerne également lutilisation dune telle composition, ainsi quun dispositif la contenant.