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NEWS — pH level

What is the pH level in cosmetics and why you should know it?

elena lezhneva 3 Comments
As many remember from the school chemistry course and the soap advertising, the pH level is a scale used to specify the acidity or basicity of an aqueous solution. The very concept of pH appeared about a hundred years ago. It was introduced by the Danish chemist Søren Peder Laurits Sørensen. From Latin, the pH can be translated in two ways: pot...
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