Kojic acid is an organic acid naturally derived from specific types of fungi. It is used in various cosmetic products, including soaps, powders, serums, and creams, to help with hyperpigmentation and sun damage.

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1. May Treat Hyperpigmentation

The research on kojic acid is strongest regarding its skin-lightening effects. The Cosmetic Ingredient Review (CIR) approved using kojic acid for skin lightening in concentrations that do not exceed 1%.

Research shows that kojic acid may help treat hyperpigmentation by inhibiting excess melanin production. Kojic acid reduces melanin by interfering with the enzyme tyrosinase, which is needed to produce it. More research may be necessary for other uses of kojic acid.

2. May Treat Acne

Kojic acid has antifungal and anti

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