Nanotechnology in Cosmetics

Abstract

Substances in the nano-sized dimensions perform newer properties which determine new benefits and special uses in cosmetics. Nano-materials may have special interactions with biological systems and physiological effects that are different from conventional or bulk ingredients. Concerns about the non-controlled potential penetration of nano-materials through the skin have been raised. This issue considers that they are so new that cannot have been adequately tested up to now to ensure sufficient safety. As consequence, the new EU legislation considers with special attention formulations containing nano-sized ingredients.