Perfect skin holds sufficient amount of hydration that keeps skin soft and supple. In order to absorb and retain moisture, skin needs NMF (Natural Moisturizing Factor) and sebum to protect itself against dryness. The ultimate goal in achieving perfect skin is to keep the three elements in exquisite balance.
Along with such environmental factors as climate, daily facial cleansing can upset the skin's ideal moisture balance. Shiseido recommends steps 1-2-3 as a simple, yet effective daily skincare.