In 1952, German dermatologist Dr Heinz Maurer, while studying how to help eczema patients clean and bathe, noticed that the surface of the human skin is covered with a weakly acidic protective membrane, which mainly functions to block external environmental stimuli and keep the underlying layer of the skin moist; Finally, a pH 5.5 cleansing detergent was successfully created that does not contain soap or alkali and matches the optimal weak acid value for healthy skin. To this day, Shiba's products continue to innovate, not only for cleaning or beauty, but more importantly, to match the current environment and personal needs, promote the formation of a weak acidic protective film on the skin, be gentle and skin friendly, keep the skin healthy and smooth, and can be used on sensitive and problematic skin.