The skin consists of several layers: the epidermis, the dermis and subcutaneous tissue. Within the epidermis, there is the so called corneal layer. It is covered by a thin water-fat film. The pH of this film lies in the slightly acidic range, depending on the body part between 4.5 to 5.9. Therefore, it is also called acid layer. This environment is ideal for the "good" bacteria that are important for healthy skin flora. Foreign microorganisms, however, can not multiply in this environment.
Cosmetic products should support the natural acid layer and with its pH value correspond to the skin flora. In this case, you call it pH-balanced skin care.
All Santaverde products have a skin-friendly pH value between 4.5 and 5.5.