Composition for the cosmetic and/or pharmaceutical treatment of the upper layers of the epidermis by topical application to the skin, and corresponding preparation process

摘要

Composition comprising biodegradable nanoparticles encapsulating oils which are active and/or which contain an active ingredient having a cosmetic and/or pharmaceutical action in the upper layers of the epidermis. The nanoparticles are preferably prepared from a polymer of (C2-C12) alkyl cyanoacrylate.