Kojic acid blocks tyrosinase, the enzyme responsible for melanin production, making it effective at reducing hyperpigmentation and dark spots. It also has antimicrobial, antiviral, and antioxidant properties, which is why it's used in skin creams, lotions, and other topical products. The research confirms it works as a UV protector and melanin suppressant, though no specific efficacy percentages were provided in this review.

This was a literature review that examined existing research on kojic acid's applications across cosmetic and pharmaceutical products, rather than a new clinical trial testing it on human skin.

Funding not disclosed in abstract