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Kojic Acid

Product name: Kojic Acid
Appearance:Pale yellow crystal powder
Assay: 99%
Standard: GB, USP, EP
Molecular Formula: C6H6O4
Molecular Weight: 142.11
Certifications: ISO, HACCP, HALAL, KOSHER
Delivery: Shipped in Same day from stocks
Drum: 20,25kg
Pallet:12drums/pallet,or 30cartons/pallet
Storage: Well-closed, dry place with constant 2-8℃
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Kojic acid is a kind of specialized inhibitor for melanin. It can prevent the tyrosinase activity through synthesizing with copper ion in the cells after it enters skin cells. Kojic acid and its derivative has better inhibitory effect on tyrosinase than any other skin whitening agents. At present it is assigned into various kinds of cosmetics for curing freckles, spots on the skin of old man, pigmentation and acne.

Kojic acid


AppearanceWhite or off white crystalline powder
IdentificationIR,Similar with the Reference Spectrum
Loss on drying0.5% max.
Particle Size100% through 80 mesh

Freely soluble in water, ethanol, acetone;

Slightly soluble in ether, ethyl acetate, chloroform

Heavy Metals≤10ppm


* Tyrosinase inhibition ability:

Kojic acid at a concentration of 20ug/ml can inhibit 70%-80% of the activity of tyrosinase (or polyphenol oxidase PPO) from different sources.

* Antibacterial ability:

0.2%-0.5% kojic acid can inhibit the growth of a variety of bacteria.

* Oxidation resistance:

The phenolic hydroxyl of kojic acid can be reduced.

* Chelation of metal ions:

It can chelate with Fe, Cu, Mn and other metal ions.


* In cosmetics: It is generally recommended to add 0.5% ~ 2.0%.

* In agriculture: Biological microfertilizer was prepared by adding 0.5~1.0%.


* In Cosmetics:

Kojic acid functions as an antioxidant and whitening in cosmetic products.

It can effectively treat freckles, old age spots, pigmentation, acne and so on.

* In Pesticides:

Kojic acid can be used in pesticide application, whether as foliar fertilizer for spraying (low concentration), or as growth and yield enhancer for root application.

It has obvious effects on grain and vegetable yield increase, and can also be used as insecticide or insecticidal fungus synergist.

agricture kojic acid



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