Urea compositions

Details Urea compositions Urea compositions

A - Human Necessities

61

K

A61K 31/17 (2006.01) A61K 8/365 (2006.01) A61K 8/42 (2006.01) A61K 31/19 (2006.01) A61K 31/366 (2006.01) A61K 31/56 (2006.01) A61K 31/70 (2006.01) A61K 31/715 (2006.01) A61K 47/08 (2006.01) A61P 17/00 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2481702

The invention is directed to compositions, methods of making the compositions, and methods of treating cosmetic and dermatological disorders with a composition that includes a molecular complex between urea and a functional substance that has at least one hydroxyl group and one carboxyl group either as a free acid, a salt, an amide or a lactone. The compositions are stable when compared to conventional urea-containing compositions, and provide controlled-release of the urea.

La présente invention a trait à des compositions, des procédés de fabrication de telles compositions, et des procédés de traitement de troubles cosmétiques et dermatologiques avec une composition comprenant un complexe moléculaire entre l'urée et une substance fonctionnelle qui présente au moins un groupe hydroxyle et un groupe carboxyle sous la forme d'un acide libre, d'un sel, d'un amide ou d'un lactone. Les compositions sont stables par rapport aux compositions classiques contenant de l'urée, et permettent une libération contrôlée de l'urée.

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