pH Value 7: pH Neutral
The pH value serves as a measure to determine the hydrogen ion concentration of substances. It is measured on a scale from 0 to 14: a pH value less than 7 is referred to as acidic, and a value greater than 7 as alkaline. If a product is "pH neutral," it has a pH value of exactly 7.
The pH value of healthy skin is between 4 and 6.5 – thus slightly acidic. For this reason, it is often referred to as the skin's "acid mantle," which is very important for healthy skin defense.
