What is Kojic Acid?
Kojic acid is a brightening ingredient that comes from a natural fermentation process, similar to the fermentation used to make certain foods. It has been used in skincare for decades as a way to fade the look of dark spots and even out skin tone. Kojic acid is included in INTOIT's Maximalist Moisturizer, where it works alongside alpha arbutin and glutathione to support a brighter, more even complexion.
Source
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Found in |
Produced through the fermentation of certain fungi |
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Origin |
Naturally derived through fermentation, then purified for cosmetic use |
Top features and benefits
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Helps fade the look of dark spots |
Supports a more even skin tone |
Derived from a natural fermentation process |
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Works well alongside other brightening ingredients |
Long history of use in skincare |
Suitable for most skin types at appropriate concentrations |
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Can help with post-acne discoloration |
Typically used at low, well-studied concentrations |
How Does It Work?
Kojic acid works by targeting tyrosinase, the enzyme skin cells use to produce melanin, the pigment responsible for skin color and dark spots. It does this by binding to copper, a mineral that tyrosinase needs to function. Without access to that copper, the enzyme cannot work as efficiently, so less melanin gets produced in treated areas over time.
This is a different mechanism from ingredients like alpha arbutin, which work by directly blocking the enzyme's usual target rather than its copper supply. Because of this, the two are sometimes used together for a more complete brightening effect.
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