Acid Mantle: Hydrolipid Film of the Skin
Through the secretion of sweat and sebum, the skin acquires the property of maintaining a slightly acidic pH value of an average of 5.0 to 5.5 over its entire surface. This sweat-sebum film is also called the hydrolipid film.
The acid mantle contributes to protection against pathogens and dehydration, as well as against the penetration of harmful and irritating substances.
