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The pH level of skin is measured on a scale from 0 to 14, with 7 being neutral. The optimal pH for healthy skin is between 4.5 and 5.5, which […]
Tag Archives: pH
The pH level of skin is measured on a scale from 0 to 14, with 7 being neutral. The optimal pH for healthy skin is between 4.5 and 5.5, which […]