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敏感肌用化妆品怎么样做过敏试验

更新时间: 2020-11-23 00:00:00     

化妆品的皮肤过敏实验办法十分简单,先用蒸馏水或生理盐水浸湿一块纱布,拧至半干,并折叠为4层约1平方厘米大小,将化妆品涂在纱布的一面,然后敷在前臂伸侧或背部正常皮肤上,再盖上1.5平方厘米不透气的玻璃纸或塑料薄膜,以胶布固定。

经过24~48小时的察看,假如测试处剧痒或灼痛,标明该化妆品对皮肤有刺激性,则为阳性反应,应及时将实验物去掉,用清水冲洗。若实验部位无任何病症,则为阴性反应,标明该化妆品对皮肤无刺激性,较为平安。若呈现单纯红斑、瘙痒,则为弱阳性;呈现红肿、丘疹则为中度阳性;呈现显着红肿、丘疹及水疱则为强阳性;呈现显着水疱以至坏死,则为极强阳性。呈现阳性反响除了要及时清洗、处置外,并提示该化妆品绝对不可运用。

关键词: 敏感 化妆品 怎么样 过敏 试验

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