No, quite the opposite, many customers even use the water to wash their hair! The filtered water has - like the skin - a slightly acidic pH value and thus does not attack the acid mantle of the skin. Depending on the water hardness, the pH value varies between pH 5.0 and pH 6.0 at start-up, then increases with increasing operating time, and reaches the pH value of the supply water when the filter cartridge is completely exhausted. Note, however, that the capacity of the filter cartridge is exhausted much faster when the water is used for body cleansing and hair washing.