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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i remember that Krave beauty aha have this ingredient. That is why it makes my skin fell itchy
氫氧化鉀是強鹼沒錯,但完全皂化後的成品中是不含KOH的,大家以前上化學課沒有學過嗎?氫氧化鈉(NaOH)也是一樣的道理,所以才說可以安心使用啊!!製作過程中沒有使用KOH跟NaOH的皂不能稱作液態皂或肥皂,多半只是活性介面劑,是假的肥皂啊!