Description: Kojic acid (5-hydroxy-2-hydroxymethyl-4-pyrone) is a by-product in the fermentation process of malting rice. Mild inhibitor of the formation of pigment in plant and animal tissues. Off-white powder. Soluble in water.
CAS: 501-30-4
INCI Name: Kojic acid
Benefits:
Skin-lightening effect by inhibiting melanin formation
Promotes skin lightening and helps establishing an even skin tone on all skin types
Minimizes liver spots
Often used also to preserve or stabilize colors in cosmetic products
Can enhance shelf life through its preservative actions against chemical and microbial degradation 
Use: Recommended concentration 1-3%. Add to warm (25-40°C/77-104°F) water phase of formula. It can oxidize and lose some of its activity if put into hot water (>40°C/104°F). Can be combined with other skin lighteners. Kojic acid has tendency to oxidize over time; use vitamin E tocopherol or BHT in the cream to reduce oxidation. For external use only.
Applications: All kinds of skin-lightening products including lotions, creams, fluids, makeup products.
Country of Origin: Japan
Raw material source: Sugars obtained from corn starch or rice
Manufacture: Kojic acid is produced by fungus fermentation (mostly Aspergillus species) of various sugars.
Animal Testing: Not animal tested
GMO: Not tested for GMOs
Vegan: Does not contain animal-derived components