Kojic acid is white or off-white needle-like crystals, easily dissolved in water, alcohol and acetone.

Application in cosmetic field: It is used for macula-removing and whitening.In the human skin, tyrosine is oxidized and polymerized with oxygen-derived free radicals under the catalytic action of tyrosinase and then synthesized to melanin. kojic acid is utilized as food additives for preservation, fresh-keeping and antioxidation.kojic acid has no mutagenic action to eukaryotic cells.