什么是水杨酸？

Salicylic acid is a beta-hydroxy acid derived from the bark of a willow tree.水杨酸是衍生自柳树树皮的β-羟基酸。 It occurs naturally in various plants它天然存在于各种植物中
包括但不限于黑升麻，蓝旗，美国五叶草，cassie，古柯，狗草，荣耀百合，万寿菊，海豹岛棉，车前草，，冬青，依兰和柳树皮。 由于水杨酸及其盐和酯具有多种功能，因此这些成分可用于多种类型的化妆品和个人护理产品中，包括保湿剂，皮肤清洁产品，洗发水以及皮肤护理，护发，防晒霜和防晒霜产品。以及漱口水和洁牙剂中。 
The safety of salicylic acid used as a cosmetic ingredient has been evaluated by both the cosmetic industry and FDA.水杨酸作为化妆品成分的安全性已由化妆品行业和FDA进行了评估。 At a meeting in February 2000, the Cosmetic Ingredient Review (CIR) Expert Panel, the cosmetic industry's independent body for reviewing the safety of cosmetic ingredients, reached the tentative conclusion that the use of salicylic acid related substances in cosmetics is "safe as used when formulated to avoid irritation and when formulated to avoid increased sun sensitivity."在XNUMX年XNUMX月的一次会议上，化妆品行业审查化妆品成分安全性的独立机构化妆品成分审查（CIR）专家小组得出了一个初步结论，即在化妆品中使用水杨酸相关物质“使用时安全。配制时避免刺激，以及配制时避免增加阳光敏感性。”