Our expert says:
Toner is used to restore the skin's natural pH balance. The skin has a pH balance of 5.5, while water can have a pH balance as high as 9.5 depending on where you live and on how hard the water is. After washing your skin, your skin's pH balance is completely distorted and your skin starts working overtime to restore pH levels; a process which may take up to half an hour. Toner restore ph levels in an instant and prepare your skin for the moisturizer.
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