Kojie San has an all-natural kojic acid formula that helps lighten dark spots due to acne, age spots, freckles, sun-damaged skin, and other skin pigmentation. Kojic Acid was discovered in Japan. It is a by-product of Koji, or Malted Rice, for use in the manufacture of rice wine. In cosmetics, Kojic Acid is popularly known for its excellent whitening effects and anti oxidant properties kojic acid lightening soap, Kojie san's formulation blends effective whitening ingredients with nourishing coconut oil and a fresh orange fragrance. Kojic acid was discovered while processing rice for Japanese wines. The naturally derived ingredients in this soap have been proven to safely and quickly reveal even skin by gently smoothing away dark spots, discoloratioan and other imperfections.