Ideally then, facial skin should not come in contact with soap or hot water so that the natural pH level of the skin, which is slightly acidic at 4 to 4.
5, is not disturbed. Leaving the acidity of the skin intact protects it not only from dryness, but also from blemishes and irritations that might come from invading bacteria
. The skin has its own protective shield, regular soap can cause damage.