| abstract |
The present invention relates to an anti-wrinkle composition containing a dispersion of a polymeric system comprising at least one polymer of natural origin, and to the use of this polymeric system as a tightening agent in a cosmetic or dermatological composition. The polymer used must characteristically have a molecular weight greater than 670,000 daltons and the polymeric system obtained must be able to form a vapor permeable film, have a Young's modulus ranging from 10 ** 8 to 9.10 ** 9 N / m ** 2 and produce, at a concentration of 7%, a retraction of the isolated stratum corneum of more than 1.5% at 30 deg. C under a relative humidity of 40%. The composition obtained is used in particular for the immediate treatment of wrinkles and fine lines of the skin. |