Azelaic acid
Multifunctional actives

Azelaic acid.

A dicarboxylic acid used for blemishes, post-inflammatory marks and uneven tone.

INCI name
Azelaic Acid
Function
A multifunctional cosmetic active; some concentrations and indications also fall within medicinal use.
Information level
Established evidence for azelaic acid
Last reviewed
22 September 2026
01

What it does

May contribute to an even appearance and comfort in skin prone to blemishes or redness.

02

Who may benefit

Combination, oily, sensitive skin or skin with uneven pigmentation, introduced gradually.

03

Compatibility

Niacinamide, moisturisers and SPF.

04

Precautions

May cause stinging. Potassium Azeloyl Diglycinate is a derivative and is not equivalent to pure azelaic acid.

05

How to use it

Morning or evening according to the product.

06

Concentrations

The percentage cannot be inferred from INCI order. WAI LAB shows it only when stated by a verifiable source.

HOW TO READ IT

What it means in the INCI list?

In the European Union, ingredients above 1% are listed in descending order by weight; below 1%, they may appear in any order. Their position therefore cannot be used to calculate an exact percentage.

Its position helps you understand the formula, but does not on its own establish effectiveness or an exact percentage.

SOURCES

Where the information comes from.

WAI LAB distinguishes cosmetic function, regulatory context and scientific literature. This information is not a substitute for medical advice.

FROM UNDERSTANDING TO CHOOSING

Products with Azelaic acid.

20 catalogue products list a recognised form of this ingredient in their INCI.

20 resultsVerified profiles with declared concentrations appear first.
Filorga NCEF-SHOT SIERO Verified
WAI 74/100 · partialFilorgaNCEF-SHOT SIERO
Serum · 15 ml
Filorga SLEEP&PEEL 4.5 Verified
WAI 76/100 · partialFilorgaSLEEP&PEEL 4.5
Exfoliant · 50 ml
Rilastil Acnestil AZ Verified
WAI 94/100 · partialRilastilAcnestil AZ
Cream · 7 g
Rilastil Attiva Crema Verified
WAI 94/100 · partialRilastilAttiva Crema
Cream · 28 g