Leave-on cosmetic compositions containing a cationic polymer

Details Leave-on cosmetic compositions containing a cationic polymer Leave-on cosmetic compositions containing a cationic polymer

A - Human Necessities

61

K

A61K 8/34 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61K 8/86 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2362349

A leave-on cosmetic composition suitable for topical application to the skin comprising: a) a polymeric thickening agent selected from non-ionic and anionic thickening agents, or mixtures thereof, having a number average molecular weight of greater than 20,000 and; b) a cation containing polymer, or mixtures thereof wherein said composition comprises less than 4 % of an anionic, zwitterionic, or amphoteric surfactant. The compositions of the invention display low levels of tack, as well as good rheological, absorption and insulation properties, in addition to skin feel, skin softness and skin smoothness benefits.

L'invention concerne une composition cosmétique durable conçue pour l'application topique à la peau et qui comprend: a) un agent d'épaississement polymère, sélectionné parmi des agents d'épaississement non ioniques et anioniques ou leurs mélanges et qui possède un poids moléculaire moyen supérieur à 20 000 et b) un polymère contenant des cations (ou ses mélanges), ladite composition comprenant moins de 4 % d'un surfactant anionique, zwittérionique ou amphotérique. Cette composition possède un faible degré de collage ainsi que de bonnes propriétés rhéologiques, d'absorption et d'isolation, outre les bénéfices de sensation agréable, de douceur et de caractère lisse au contact avec la peau.

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