| abstract |
The present invention relates to an anti-wrinkle composition comprising an aqueous dispersion of a polymer system comprising at least one synthetic polymer, and the use of this polymer system as a stretching agent in cosmetic or dermatological compositions And about. The polymer used must have a molecular weight greater than 670,000 daltons and the resulting polymer system has a vapor-permeability with a Young's modulus ranging from 10 8 to 9 × 10 9 N / m 2 . It is necessary to form a film, which at a concentration of 7% in water, at 30 ° C. and 40% relative humidity, must produce more than 1.5% shrinkage of the separated stratum corneum. The resulting composition is particularly used for the direct treatment of wrinkles and fine lines on the skin. |