Kojic acid is a melanin-specific inhibitor that binds to copper ions in cells after entering the skin cells, alters the steric structure of tyrosinase, and prevents the activation of tyrosinase, thereby inhibiting the formation of melanin. Kojic acid active agents have better tyrosinase inhibition than other active agents. It has been formulated into various cosmetics and is a widely used cosmetic active agent. Kojic acid has an antioxidant effect in foods, which inhibits the conversion of into nitrosamines in foods without affecting the taste, aroma and texture of the food. As a production promoter, it has obvious effects on grain and vegetables. Name Kojic Acid Powder Appearance Off white crystalline powder  Specification 99% Molecular Formula C6H6O4 Molecular Weight 142.11 Solubility Easily soluble in water, alcohol, acetone, slightly soluble in ether, ethyl acetate, chloroform and pyridine, insoluble in benzene           Kojic Acid VS Kojic Acid Dipalmitate   Item Kojic Acid Dipalmitate Kojic Acid Molecular Formula 618g/mol 142g/mol Physical and chemical properties White crystalline powder,melting point 92-96℃ White to light yellow crystalline powder,melting point 150-154℃ Solubility Insoluble in water,soluble in Oil and propylene glycol Easily soluble in water,Ethanol and ethyl acetate PH Stability Stable when PH 3-10 Not stable when PH>7 Color stability Does not chelate with metal ions, color is stable and does not change color Easily chelate and discolor with metal ions, turn yellow or brown Other Stability Good light stability, not easily oxidized Light, heat, and metal ions have poor stability and are easily oxidized Compounding performance Compatible with most makeup products Incompatible with some sunscreens, preservatives 1. Applied in Agriculture: kojic acid is used in producing biological pesticides; 2. Applied in Medicine: kojic acid has been used as the an important material of cephalosporin-type antibiotics; 3. Applied in other fields: kojic acid is also used as iron analytical reagent and film spotting agent, etc; 4. Applied in Cosmetics: kojic acid has been widely added into the lotion, face mask, liquid cream and skin cream. Recommendation usage for cosmetics: 0.2~1.0%; 5. Applied in Food additive: kojic acid work as antiseptic,antioxidant, preservative and color stablizer in meat processing, also act as useful materials of food aromatizer - maltol and ethylmaltol; 1.Anti-aging Effect: Products containing Kojic Acid may lighten the skin, which can improve the appearance of age spots and sun damage. The reduction of dark spots can have an anti-aging effect. 2.Treat Melasma: Kojic Acid may also be helpful in decreasing melasma, which is darkening of the skin due to pregnancy. 3.Decrease the Appearance of Scars: Kojic Acid may also reduce the discoloration of scars. Although the acid does not improve the thickness of scar tissue, it may reduce dark pigmentation associated with certain types of scars. Lightening the scar may make it less noticeable. 4.Antifungal Benefits: Kojic Acid is also thought to have some antifungal benefits. It may be helpful in preventing and treating certain fungal infections, such as athlete's foot and yeast infections. 5.Antibacterial Effects: Kojic Acid may also provide antibacterial benefits. It may help decrease the chances of developing common types of bacterial skin infections.