Ingredient glossary

Citric Acid

INCI: Citric Acid

Decent support

A reasonable supporting ingredient. It helps a formula without being the star.

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What it does

  • pH adjuster
  • mild exfoliation
  • brightening

moderate evidenceEvidence supports citric acid as a mild exfoliant and pH adjuster that refines texture and supports acidic pH, though it is rarely the primary hero active in modern formulas.

Who it's for, and who should skip it

Tends to suit

  • normal
  • oily
  • combo

Approach with care

  • very sensitive
  • compromised barrier
  • Clogs poresLow
  • Irritation riskModerate
  • pH-dependentIts effect depends on the product's pH

Pregnancy: Check with your doctor before using during pregnancy or breastfeeding.

Plays well with

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Educational information about a cosmetic ingredient, not medical advice.