Kojic Acid
5-Hydroxy-2-hydroxymethyl-4H-pyran-4-one
EU Annex III restricted; mutagenicity signal in vitro (not confirmed in vivo at limits); SCCS concluded safe at permitted concentrations; thyroid effects in animal studies; must verify product meets limits
Function & Common Use
Active (Brightening)
Active Ingredient
Brightening products
Biotechnological (Aspergillus fermentation)
Concentration Limits
No formal limit
1% face max EU; 0.5% hands max EU; not for body
No specific 21 CFR cosmetic limit identified in source checked; EU limit reference: 1% face max EU; 0.5% hands max EU; not for body
2% (whitening functional cosmetic)
Format restriction: Leave-on
Baby restriction: Not for children under 12
Pregnancy: No specific restriction identified; general precautionary assessment recommended.
Frequently Asked Questions
Is Kojic Acid safe to use in skincare?
Kojic Acid has a Medium concern rating. EU Annex III restricted; mutagenicity signal in vitro (not confirmed in vivo at limits); SCCS concluded safe at permitted concentrations; thyroid effects in animal studies; must verify product meets limits
Is Kojic Acid allowed in India?
Kojic Acid is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is No formal limit.
What is Kojic Acid used for in cosmetics?
Kojic Acid functions as: Active (Brightening). It is commonly found in: Brightening products.
Is Kojic Acid safe for babies?
Kojic Acid has baby/child restrictions: Not for children under 12. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.
Regulatory Status
EU Annex: EU Annex III
Identifiers
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