Kojic Acid is a melanin-specific inhibitor. After entering skin cells, it can complex with copper ions in the cells, change the three-dimensional structure of tyrosinase, prevent the activation of tyrosinase, and thereby inhibit the formation of melanin. Kojic acid whitening active agents have a better tyrosinase inhibitory effect than other whitening active agents. It does not act on other biological enzymes in the cell and has no toxic effect on the cell. At the same time, it can enter the intercellular substance to form the intercellular glial, which plays a role in retaining water and increasing skin elasticity. It has been formulated into various cosmetics to make whitening cosmetics for freckles, age spots, pigmentation and acne. Kojic acid also has the functions of scavenging free radicals, enhancing cell viability, food preservation and color protection, etc., and is widely used in the fields of medicine and food.
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