Skip to content

Skin Conditioning

AZELAIC ACID

CAS 123-99-9 Updated
78

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A C9 dicarboxylic acid celebrated for clearing blemishes and evening tone. ECHA flags it for skin and eye irritation, so cosmetic levels stay below dermatology Rx strengths.

Function

BUFFERINGFRAGRANCE

Skin benefits

  • Reduces blemishes and post-acne marks
  • Tyrosinase inhibition for evening tone
  • Anti-inflammatory effects

Known concerns

  • Causes skin irritation (H315) at strong levels
  • Causes serious eye irritation (H319)
  • Stinging in first weeks of use

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

Related skin conditionings

78
2,5-DIHYDROXYBENZOYL DIPEPTIDE-48
Skin Conditioning
 78
4-Hydroxyphenyl-alpha-D-glucopyranoside
Skin Conditioning
 78
4-PCA DIMETHICONE
Skin Conditioning
 78
7-DEHYDROCHOLESTERYL PALMITATE
Skin Conditioning
 78
ACANTHOPANAX SENTICOSUS ROOT EXTRACT
Skin Conditioning
 78
ACANTHOPANAX SESSILIFLORUS CALLUS EXTRACT
Skin Conditioning
 78
ACER SACCHARUM EXTRACT
Skin Conditioning
 78
ACETYL D-ASPARAGINYL D-THREONYL D-TYROSINE
Skin Conditioning

Check your shelf

Find AZELAIC ACID in your products.

Scan any cosmetic product with LuxSense to see if it contains AZELAIC ACID and get a full ingredient breakdown with safety scores.

This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.