Physiological pH

pH is a unit of measurement which can define the acidity or alkalinity of a liquid. The pH scale goes from 0 to 14, indicating acidity, neutrality or alkalinity. Physiological pH is the normal value that the body’s fluids should have; in fact, they must be maintained within physiological values to preserve our body’s health. The level of physiological acidity varies depending on the area of the body (intimate mucosae values between 4 and 5; values of skin tissues between 5.5 and 6.5; scalp between 4 and 6).