如果化妝水含有此成份，對皮膚會有什麼影響

為何刺激度5卻可以安心使用>"

此為強堿配方，皂基成分，ph值約為9~10.對皮膚刺激性大

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
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如果它是為了調整整體的酸鹼值, 最終產品的酸鹼值如果還是親膚的弱酸性, 那就沒有什麼關係了吧

這個成分加到兒童防曬霜裏會不會對皮膚有影響啊？天天悶在臉上幾個小時哎..

同上(dkwu123 )：如果它是為了調整整體的酸鹼值, 最終產品的酸鹼值如果還是親膚的弱酸性, 那就沒有什麼關係了吧

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