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.
本发明涉及组合物、组合物的制造方法以及用组合物治疗化妆品和皮肤病的方法,该组合物包括
尿素与一种功能物质之间的分子络合物,该功能物质具有至少一个羟基和一个羧基,可以是
游离酸、盐、酰胺或内酯。与传统的含
尿素组合物相比,这种组合物非常稳定,并能控制
尿素的释放。