Ingredient glossary
Kojic Acid
INCI: Kojic Acid
Solid and proven
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What it does
- brightening
moderate evidenceClinical and review data support kojic acid as an effective depigmenting agent at 1–2%, though irritation risk increases with higher concentrations and prolonged use.
On a label: usually effective at 1-2%.
Who it's for, and who should skip it
Tends to suit
- pigmentation
- melasma
- post inflammatory hyperpigmentation
Approach with care
- very sensitive
- compromised barrier
- Clogs poresLow
- Irritation riskModerate
Pregnancy: Check with your doctor before using during pregnancy or breastfeeding.
Plays well with
- arbutin
- vitamin c
- niacinamide
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Educational information about a cosmetic ingredient, not medical advice.