3. PH Level

This component of skincare products is rarely talked about, yet very important to keep in mind. The pH level of a product can determine whether or not it actually does its job, or if it’s safe to use. Salicylic acid treatments can become ineffective at pH levels that are too high for it to exfoliate and cleansers with a steep pH level are too drying for the skin. Every skincare ingredient is different (vitamin C and acid exfoliants work best at lower ph levels, cleansers are optimal at a pH level close to the that of the skin), you can typically find this information in the product details!

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