Kojic 24k Polisher Set SmallSkin polishing is a technique used to brighten or exfoliate dull skin by removing the dead skin on the surface. With Kojic Gold Skin Polish, you can achieve desired results within few minutes. Kojic products are known among professionals for its high quality and standards. Oxidizing Emulsion Vol. 20 Its high quality formula gives a compact mixture that is easy to apply, and it enhances the characteristics of the skin polishing and bleaching process.