| abstract |
PCT No. PCT/FR97/02461 Sec. 371 Date Nov. 17, 1998 Sec. 102(e) Date Nov. 17, 1998 PCT Filed Dec. 30, 1997 PCT Pub. No. WO98/29091 PCT Pub. Date Jul. 9, 1998The present invention relates to an anti-wrinkle composition containing a dispersion of a polymer system comprising at least one polymer of natural origin, and to the use of this polymer system as a tensioning agent in a cosmetic or dermatological composition. In particular, a soybean protein commercial product Profam 972. The polymer used must characteristically have a molecular weight of greater than 670,000 daltons and the polymer system obtained must be capable of forming a steam-permeable film, it must have a Young's modulus ranging from 108 to 9x109 N/m2 and it must produce, at a concentration of 7%, a greater than 1.5% retraction of isolated stratum corneum at 30 DEG C. and at a relative humidity of 40%. The composition obtained is used in particular for the immediate treatment of wrinkles and fine lines on the skin. |