Hydroxy acids based delivery systems for skin resurfacing and anti-aging compositions
申请人:——
公开号:US20040092482A1
公开(公告)日:2004-05-13
This invention relates to in-situ preparation of the derivatives of various hydroxy acids (HA), such as &agr;-(Alpha) Hydroxy Acids (AHA), &bgr;-(Beta) Hydroxy Acids (BHA), and Poly-Hydroxy Acids (PHA) with certain skin beneficial organic hetero-atom bases and their application in skin resurfacing (exfoliation), and in the synergistic treatment and regulation of topical disorders of skin such as skin aging, wrinkles, acne, rosacea, age-spots, canker sores, striae distensae (stretch marks), pimples, skin redness, and dry skin conditions of cracking, flaking, and scaling. Most HA derivatives produced by the in-situ method do not cause skin irritation and skin redness effects that are commonly experienced with AHA and BHA, yet there is no loss of their skin beneficial effects. These compositions can be traditional water and oil emulsions, liposomes, suspensions, colloids, solutions, masks, muds, serums, sprays, gels, lotions, creams, cleansers, and anhydrous systems, thus offering a wide choice of formulations to meet their consumer appeal and acceptance requirements.
本发明涉及原位制备各种羟基酸(HA)的衍生物,如&agr;-(α)羟基酸(AHA)、&bgr;-(β)羟基酸 (BHA)、聚羟基酸 (PHA) 与某些对皮肤有益的有机杂原子基团的衍生物,并将其应用于焕肤(去角质)、协同治疗和调节皮肤局部疾病,如皮肤老化、皱纹、痤疮、红斑痤疮、老年斑、口腔溃疡、妊娠纹、丘疹、皮肤发红以及干性皮肤皲裂、脱皮和脱屑等。通过原位法生产的大多数 HA 衍生物不会造成 AHA 和 BHA 常见的皮肤刺激和皮肤发红现象,同时也不会失去对皮肤有益的功效。这些组合物可以是传统的水和油乳剂、脂质体、悬浮液、胶体、溶液、面膜、泥浆、精华液、喷雾剂、凝胶、乳液、膏霜、清洁剂和无水体系,因此可提供多种配方选择,以满足消费者的吸引力和接受度要求。