Properties and effects of kojic acid:
Brightening effect and reduction of hyperpigmentation
Kojic acid’s main mechanism of action is to block the activity of tyrosinase—a key enzyme involved in the melanogenesis process, which is responsible for the production of melanin, the skin pigment. Kojic acid has the ability to form complexes with zinc and copper ions, which are essential for tyrosinase activity. This allows kojic acid to help reduce pigmentation spots and even out skin tone.
Anti-inflammatory effect
Kojic acid also has anti-inflammatory properties. It has antibacterial properties and is recommended for acne.
Application in cosmetics:
Kojic acid can be used in cosmetic products such as creams, serums, toners, and facial gels, as well as in professional chemical peels used in beauty salons. It is also used in anti-aging cosmetics and products for skin with discoloration and acne. Kojic acid can be combined with other brightening and antioxidant ingredients, such as vitamin C, arbutin , and alpha- and beta-hydroxy acids, to enhance its effectiveness.
Kojic acid is typically used at concentrations of up to 1% in cosmetic products intended for daily skin care. Higher concentrations (above 1%) are only recommended under the supervision of a specialist as part of a professional treatment.
It is not recommended to use products containing kojic acid in people who are allergic to this ingredient, as well as on damaged skin with open wounds or active inflammation.
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