N any acid, such as sulphuric acid, containing hydroxyl groups in its molecules 氢氧酸
Through the copolymerization with hydroxy acid, PEG is endowed with gel system biodegradability;
将PEG通过与羟基酸共聚，赋予凝胶体系生物可降解性；
BHA, or beta hydroxy acid, is a form of salicylic acid and is used in some topical exfoliants to reverse signs of aging.
或者beta hydroxy acid，是水杨酸的一种，被用在一些局部去角质产品中来扭转老化迹象。
The alpha hydroxy acid containing liposome was made by reverse phase evaporation method with high purity soya lecithin as synthetic material.
以高纯度大豆卵磷脂为包封材料，用反相蒸发法制备出果酸脂质体。
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