Dossier - Cosmetic active ingredients

Azelaic acid: the complete file of the 8 serums on the market.

The most versatile active ingredient in dermo-cosmetology - anti-spot, anti-redness, anti-imperfections and tolerated during pregnancy. Eight serums analyzed, three concentrations, 83 reviews compiled.

AuthorDr Sylvain David
ExpertiseIndependent cosmetic analysis
Sera analyzed8 references - 3 concentrations
Compiled opinions83 BeautyDecoded returns
Analyze my serum in the app
Score out of 100 - Customized for your skin
8
In-depth serum analysis
4
Documented clinical actions
83
Compiled user reviews
Mechanisms of action

What it says literature.

Azelaic acid is a naturally-occurring organic diacid with multiple, well-documented mechanisms of action - making it the most versatile active ingredient in dermatological cosmetics.

01

Anti-pigmentation action

Competitive tyrosinase inhibition and selective cytotoxic effect on hyperactive melanocytes. Documented on post-inflammatory spots.

02

Anti-redness action

Reduces free radical production and inhibits 5α-reductase. The reference active ingredient for rosacea and erythrosis.

03

Comedolytic action

Normalization of follicular keratinization and inhibition of Cutibacterium acnes - the basis for its use in acne-prone skin.

Note from Dr Sylvain David

«Azelaic acid is the active ingredient I most often recommend to sensitive skin looking to correct blemishes or redness - precisely because it combines several mechanisms with a tolerance superior to most alternatives. It's also the only anti-spot active ingredient authorized without restriction during pregnancy.»

It benefits from solid clinical documentation, available in over-the-counter cosmetics (10-15 %) and on prescription (20 %).

Reading guide

10 %, 12 %, 15 % - which one to choose ?

The concentrations available in free cosmetics cover a narrow but significant range. The choice depends on established skin tolerance and the intensity of the targeted problem.

ConcentrationStatusDocumented effectivenessToleranceIdeal profile
10 %Free cosmeticsBlemishes, redness, slight imperfectionsGood - transient tingling may occurAll profiles, including pregnancy
12 %CosmeticsEnhanced action on spots and rednessGood with associated soothing formulaProfiles that have tolerated 10 %
15 %CosmeticsHighly effective on rosacea and hyperpigmentationModerate - more frequent tinglingConfirmed profiles, on medical advice
20 %Medical prescriptionClinical referenceModerate to lowOn prescription only
✅
An asset compatible with pregnancy. Azelaic acid is one of the few anti-dark spot actives authorized during pregnancy and breastfeeding - a unique case among corrective actives.
⚠️
Initial tingling. Azelaic acid causes tingling and a slight transient redness on application at the start of use. This phenomenon is normal and diminishes with regular use.
Comparison table

The 8 sera analyzed, at a glance.

Editorial ranking - from most accessible to most concentrated, taking into account formulation, user reviews and tolerance profile.

The most accessible

Azelaic Acid Serum 10%

Aroma-Zone

Minimalist formula - imperfections, pores

10 %
The most complete

Clarifying Anti-Redness Care

Nooance

Triple action - redness, blotchiness, rosacea

12 %
Best tolerance 15 %

AZID Azelaic Acid

Theramid

5 ceramides + peptides - rosacea, sensitive skin

15 %
Dermo-acne range

Teen Derm a.ż Intense Care

Isispharma

Acne, blemishes - alcohol-free

15 %
Pharmacy - 15 %

Sebiaclear Flash Bulb

SVR

Blemishes, oily skin - accessible

15 %
Azelaic + salicylic

10% Azelaic Acid Booster

Paula's Choice

Blemishes + slight redness

10 %
Evening use only

Azelaic Acid Suspension

The Ordinary

Local night-time application - low budget

10 %
Matification

Azelaic acid + Bamboo

Typology

Zinc PCA - Oily skin

10 %
Aroma-Zone

Azelaic Acid Serum 10%

★★★★½4,32/5(19 reviews BeautyDecoded)
The most accessible
Full INCI : AQUA, AZELAIC ACID, PENTYLENE GLYCOL, PROPANEDIOL, SALIX NIGRA BARK EXTRACT, SILICA, SODIUM HYALURONATE, ASTRAGALUS GUMMIFER GUM, SEBACIC ACID, XANTHAN GUM, PHYTIC ACID, SODIUM HYDROXIDE

Minimalist formula with 10 % azelaic acid. Sebacic acid reinforces sebum-regulating action. Black willow extract, sodium hyaluronic acid for hydration. Fragrance-free. Very short INCI - easy to combine with other active ingredients in the routine. Refillable format available.

✅ Sensitivity verdict Favorable tolerance. Alcohol- and fragrance-free formula. Slight tingling sensation possible on application.
User feedback
«It helps remove and limit the appearance of blackheads. I highly recommend it.»
«Visible results from the first week on skin quality - no more imperfections, brighter skin.»
Summary - the simplest, most accessible formula in the selection. 12-ingredient INCI, easy-to-read concentration, fragrance- and alcohol-free. An ideal option for those just starting out with azelaic acid, or for profiles wishing to precisely control their active ingredient combinations.
Nooance

Clarifying Anti-Redness Care 12%

★★★★½4,29/5(21 BeautyDecoded reviews)
The most complete
INCI (extract) : AQUA, AZELAIC ACID, SIMMONDSIA CHINENSIS SEED OIL, TRANEXAMIC ACID, GLYCERIN, DIMETHICONE, NIACINAMIDE, PENTYLENE GLYCOL, BISABOLOL, ALLANTOIN, GLYCYRRHIZA GLABRA ROOT EXTRACT, ADENOSINE, TOCOPHEROL...

Azelaic acid at 12 % in 2nd INCI position, combined with tranexamic acid and niacinamide - a triple anti-pigmentation, anti-redness and sebum-regulating action. The presence of bisabolol, allantoin and licorice extract reinforces the soothing profile. Jojoba oil as emollient. Fragrance-free. Top-of-the-range French brand.

✅ Sensitivity verdict Favorable tolerance to 12 %. The formula, enriched with soothing active ingredients, is suitable for sensitive, couperose-prone skin. Slight tingling may occur at the start of use.
User feedback
«This serum quickly soothed my redness. For the hyperpigmentation, I need to be more patient.»
«I'm starting my second bottle. Soft, light texture, velvety skin. My rosacea is slightly reduced.»
«Very effective - cleared up my sun spots in a few months. Tingling at first, use sparingly.»
Summary - the most complete formula in our selection. The combination of azelaic acid 12 % + tranexamic acid + niacinamide is one of the most versatile available in cosmetics. A reference option for profiles targeting both redness and blotchiness. Results on rosacea require prolonged use (minimum 3 months).
Theramid

AZID - Azelaic Acid 15%

★★★★★5,00/5(5 BeautyDecoded reviews)
Better tolerance to 15 %
INCI (extract) : AQUA, AZELAIC ACID, GLYCERIN, PROPANEDIOL, GLYCERETH-26, AVENA SATIVA KERNEL FLOUR, CARNOSINE, ACETYL TETRAPEPTIDE-2, CERAMIDE NP, CERAMIDE EOP, CERAMIDE NS, CERAMIDE AS, CERAMIDE AP, GALLYL GLUCOSIDE, EPIGALLOCATECHIN GALLATYL GLUCOSIDE, SPHINGOMONAS FERMENT EXTRACT, TOCOPHEROL, CHOLESTEROL...

Azelaic acid at 15 % in a formula enriched with 5 ceramides (NP, EOP, NS, AS, AP), cholesterol, oatmeal, carnosine (a dipeptide antioxidant) and acetyl tetrapeptide-2. This architecture is specifically designed to compensate for the potential irritation of 15 % by actively rebuilding the skin barrier. Fragrance-free, alcohol-free.

✅ Sensitivity verdict Favorable tolerance - remarkable for a formula with 15 %. Ceramide + oatmeal complex significantly reduces irritant potential. Confirmed by users with sensitive and rosacea-prone skin.
User feedback
«I have vascular and inflammatory rosacea. Other products with 15 % caused burning. This one causes no irritation - it's a revolution for me.»
«I have oily, hypersensitive skin with rosacea. It helps me tremendously.»
«Very pleasant texture, absorbed well, does not fluff, very well tolerated. Skin is refined and less red.»
Summary - the most sophisticated formula in the selection in terms of high-concentration tolerance. The 5-in-1 ceramide complex with oatmeal and carnosine is a direct formulative response to the irritation problem of 15 %. A relevant option for profiles wishing to benefit from maximum concentration with preserved tolerance, particularly in cases of rosacea or reactive sensitive skin.
Isispharma

Teen Derm a.ż Intense Care 15%

★★★★★4,63/5(4 reviews BeautyDecoded)
Dermo-acne range
INCI (extract) : AQUA, AZELAIC ACID, CAPRYLIC/CAPRIC TRIGLYCERIDE, PENTYLENE GLYCOL, BUTYL AVOCADATE, GLYCERIN, DIPROPYLENE GLYCOL, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, XYLITYLGLUCOSIDE, LAURYL GLUCOSIDE, BOSWELLIA SERRATA EXTRACT, TOCOPHEROL...

Azelaic acid at 15 % in 2nd position in a dermo-cosmetic formula from Isispharma, a dermatological brand. Enriched with’boswellia extract (documented anti-inflammatory), xylitylglucoside (moisturizer) and tocopherol. Alcohol-free. Light texture. Linting possible - evening use recommended.

⚠️ Sensitivity verdict Potential risk of moderate irritation at 15 %. The formula's anti-inflammatory active ingredients mitigate this risk. Frequent initial tingling, which diminishes with regularity.
User feedback
«Very effective against inflammatory acne. Gently exfoliates and soothes the skin.»
«Excellent anti-blemish product. Real before/after on my pores and pimples. It stings the first few uses but it goes away.»
«I haven't seen a big difference on my acne after a month. And it feels fluffy - use at night only.»
Summary - dermo-cosmetic formula with 15 %, alcohol-free, enriched with anti-inflammatory active ingredients. A relevant option for acne-prone profiles looking for a high-concentration azelaic acid backed by a dermatological brand. Linting requires night-time use.
SVR Laboratory

Sebiaclear 15% Flash Bulb

★★★★½4,38/5(16 BeautyDecoded reviews)
Pharmacy - 15 %
INCI (extract) : AQUA, AZELAIC ACID, GLYCERIN, ISOPROPYL ALCOHOL, ISOPENTYLDIOL, NIACINAMIDE, ZINC GLUCONATE, DICAPRYLYL ETHER, SALICYLIC ACID, PARFUM, PENTYLENE GLYCOL, SODIUM HYDROXIDE...

Azelaic acid 15 % combined with niacinamide, zinc gluconate (seboreducer) and salicylic acid (comedolytic). Available in pharmacies. The presence of isopropyl alcohol in 4th position and perfume is noteworthy. for reactive skin. Single-dose ampoule packaging.

⚠️ Sensitivity verdict Potential risk of irritation. Concentration of 15 % combined with isopropyl alcohol and salicylic acid increases irritant potential. Not suitable for highly reactive or rosaceous skin.
User feedback
«It tingles on application and even the next day. The salicylic + alcohol combo doesn't work for me.»
«I use it as an anti-redness and to smooth the skin. Excellent product for this purpose.»
«Keeps its promises but tingles. Great with a soothing bulb first.»
Summary - high concentration, available in pharmacies. The presence of alcohol and fragrance limits its suitability for sensitive skin. A relevant option for tolerant profiles looking for a 15 % in pharmacies for imperfections and sebum regulation.
Paula's Choice

10% Azelaic Acid Booster

★★★★☆3,88/5(4 reviews BeautyDecoded)
Azelaic + salicylic
INCI (extract) : AQUA, AZELAIC ACID, C12-15 ALKYL BENZOATE, CAPRYLIC/CAPRIC TRIGLYCERIDE, GLYCERIN, CETEARYL ALCOHOL, GLYCERYL STEARATE, DIMETHICONE, SALICYLIC ACID, ADENOSINE, GLYCYRRHIZA GLABRA ROOT EXTRACT, ALLANTOIN, BISABOLOL...

Azelaic acid 10 % combined with salicylic acid (comedolytic), licorice extract, allantoin and bisabolol. Booster format - add to cream or use alone. Fragrance-free. The azelaic + salicylic combination simultaneously targets blemishes and moderate redness.

⚠️ Sensitivity verdict Moderate irritation potential - salicylic acid adds to the irritant potential. Soothing active ingredients partially compensate. Not recommended for very sensitive skin or severe rosacea.
User feedback
«My sensitive skin reacted well despite the presence of salicylic acid.»
«My skin did not tolerate well - sensitive rosacea skin.»
Summary - azelaic + salicylic synergy suitable for oily, acne-prone skin with associated redness. Not suitable for very sensitive or rosacea-prone skin.
The Ordinary

Azelaic Acid Suspension 10%

★★★☆☆3,30/5(10 BeautyDecoded reviews)
Evening use only
INCI (extract) : AQUA, ISODECYL NEOPENTANOATE, DIMETHICONE, AZELAIC ACID, DIMETHICONE/BIS-ISOBUTYL PPG-20 CROSSPOLYMER, DIMETHYL ISOSORBIDE, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, POLYSILICONE-11, ISOHEXADECANE, TOCOPHEROL...

Azelaic acid 10 % silicone suspension - atypical galenics with thick white texture. Particle dispersion in a silicone base ensures gradual release, but causes systematic fluffing incompatible with daytime use under make-up.

✅ Sensitivity verdict Good tolerance. Silicone formulation reduces direct contact of azelaic acid with the skin, reducing tingling.
User feedback
«The product is very fluffy. You can't use it with anything else - only in the evening.»
«Very happy with my acne spots. I use it every other day on the targeted areas.»
Summary - good tolerance, affordable price. Linting is unacceptable for daytime use. To be reserved for local night-time application for profiles wishing to test azelaic acid at a lower cost.
Typology

Azelaic Acid 10% + Bamboo Extract

★★★☆☆3,13/5(4 reviews BeautyDecoded)
Matification
Full INCI : AQUA, AZELAIC ACID, GLYCERIN, BAMBUSA ARUNDINACEA JUICE, 1,2-HEXANEDIOL, XANTHAN GUM, ZINC PCA, SODIUM BENZOATE, CITRIC ACID, SODIUM HYDROXIDE

Ultra-minimalist 10 % formula with bamboo juice (natural astringent) and zinc PCA (sebum-reducing). The extremely short INCI is a strength for associations. The white texture of zinc PCA can leave a film. Pipette criticized by several users for early malfunctioning.

✅ Sensitivity verdict Favorable tolerance. Alcohol-free, fragrance-free.
User feedback
«It mattifies my skin well, but not active on blemishes.»
«The pipette stopped working very quickly - I had to throw 80 % out of the bottle.»
Summary - matification axis via zinc PCA. Feedback on anti-blemish efficacy is mixed. Packaging (faulty pipette) is a recurring problem. Option to be considered only if matification is the main objective.
Usage protocol

How to integrate azelaic acid.

Unlike retinol, azelaic acid is not photosensitizing - it can be used morning and night. However, it should be introduced gradually to limit initial tingling.

Weeks 01 - 04

Introduction

Apply in the evening only. Transient tingling is normal and diminishes with regular use.

1 × / day (evening)
From week 5

Established use

Azelaic acid can be used morning and night. SPF 50 photoprotection is still recommended for all anti-spot treatments.

1 to 2 × / day
Progression 15 %

Increased concentration

Once tolerance to 10-12 % has been established, the switch to 15 % can be envisaged by resuming a gradual introduction phase.

According to tolerance
💡
Pregnancy - single case. Azelaic acid can be used during pregnancy. However, you should consult your doctor or midwife before taking any active ingredient in this context.
Associations

This works - and what to avoid.

Azelaic acid is one of the easiest active ingredients to integrate. Here's how to maximize its effectiveness.

Beneficial associations

Azelaic acid + Niacinamide

Documented synergy for sebum regulation and pigment correction.

Azelaic acid + SPF 50+ morning

Indispensable for all anti-spot treatments to prevent repigmentation.

Azelaic acid + Hyaluronic acid

Compensates for the slight dryness that can be induced by azelaic acid at 15 %.

Azelaic acid + Retinol (alternating evenings)

Complementary action on pigment correction and cell renewal. Do not apply simultaneously.

Associations to avoid

Azelaic + pure Vitamin C (same application)

Risk of cumulative irritation. Use vitamin C in the morning and azelaic acid in the evening.

Azelaic + simultaneous AHA/BHA

Cumulative irritation with no additional benefit. Alternate evenings.

Azelaic + Copper peptides

Azelaic acid can chelate copper ions and reduce the efficiency of copper peptides. Separate in the routine.

Frequently asked questions

Everything you need really know.

Which concentration to choose - 10 %, 12 % or 15 %?
10 % is the recommended entry point. 12 % (Nooance) offers superior efficacy with good tolerance thanks to its associated active ingredients. 15 % is reserved for profiles with established tolerance, with a preference for formulas enriched with barrier actives (such as AZID from Theramid).
Can azelaic acid be used during pregnancy?
Yes - azelaic acid is one of the few anti-spot ingredients authorized for use during pregnancy and breastfeeding. However, consult your doctor or midwife before using any active ingredient in this context.
Why does the product lint on application?
Linting is linked to the galenic formulation - particularly present with suspension formulas. Apply to slightly damp skin and leave to absorb for several minutes before moisturizing.
Is azelaic acid effective on rosacea?
Yes - it's one of the best-documented active ingredients for over-the-counter rosacea. Formulas enriched with soothing active ingredients (such as AZID by Theramid) are preferable for this profile.
How quickly do we see results?
Effects on blemishes and redness appear after 4 to 6 weeks. Results on pigmentation spots take 8 to 16 weeks. Regularity and daily photoprotection are the two determining factors.
Can I use it morning and night?
Yes - unlike AHAs and retinol, azelaic acid is not photosensitizing. In the introductory phase, a single evening application is recommended.
Further information

The video by Dr David.

Find out in video: how azelaic acid really works on the skin, and why it has become the most versatile active ingredient in modern skincare.

Who I am

Plastic and aesthetic surgeon. Founder of BeautyDecoded.

15 yearsclinical expertise
200 000+YouTube subscribers
70 000+Instagram & TikTok followers

«This dossier is the synthesis of what I would have liked to explain to every patient before she bought her first anti-spot serum.»

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Dr Sylvain David Plastic and aesthetic surgeon - Founder of BeautyDecoded

This information is for educational purposes only and does not replace a medical consultation. BeautyDecoded is an artificial intelligence analysis application and is not a medical diagnostic tool. The results presented depend on the user's diligence and skin type.