如果化妆水含有此成份，对皮肤会有什么影响

为何刺激度5却可以安心使用>"

此为强碱配方，皂基成分，ph值约为9~10.对皮肤刺激性大

Potassium Hydroxide is a harmful ingredient that is found not just in skin care products but in everything from leather tanners and drain cleaners. Also known as lye, Potassium Hydroxide is extremely corrosive and can be found in soaps and shampoos to control the pH of the skin. The trouble is that Potassium Hydroxide is known to cause severe burns and pain in some cases as well as blindness should it get into the eyes.

Read more: http://www.articlesnatch.com/Article/Most-Harmful-Ingredients-In-Your-Skin-Care-Products/953729#ixzz1wFZO8r2y
Under Creative Commons License: Attribution No Derivatives

如果它是为了调整整体的酸硷值, 最终产品的酸硷值如果还是亲肤的弱酸性, 那就没有什么关系了吧

这个成分加到儿童防晒霜里会不会对皮肤有影响啊？天天闷在脸上几个小时哎..

同上(dkwu123 )：如果它是为了调整整体的酸硷值, 最终产品的酸硷值如果还是亲肤的弱酸性, 那就没有什么关系了吧

i remember that Krave beauty aha have this ingredient. That is why it makes my skin fell itchy