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Skincare Comparison

Azelaic acid, ranked by what actually evens tone.

Azelaic acid is the underrated multi-tasker of skincare — antibacterial against acne, keratolytic for pores, anti-inflammatory for rosacea, and a tyrosinase inhibitor for hyperpigmentation. But the concentration (5% vs 10% vs 15% vs 20%), the vehicle (silicone suspension vs cream-gel vs serum), and the co-actives (niacinamide, BHA, retinoid) make a real difference in what your skin sees. This page ranks 13 popular azelaic acid products on irritation, clinical evidence, concentration, and price per ml.

Last updated: August 23, 2026 · Sources: Fitton 1991 (Dermatology), Thiboutot 2008 (J Am Acad Dermatol), Frampton 2014 (Am J Clin Dermatol), Draelos 2010

At a glance

Best budget entry

The Ordinary Azelaic Acid 10% Suspension

~$7.90 USD, 30ml. The most-bought azelaic acid product in the world. 10% AZA in a silicone-elastomer suspension — the OTC maximum for tone-evening + mild rosacea.

Most evidence per dollar

Paula's Choice 10% Azelaic Acid Booster

~$44 USD. Triple-active (AZA + BHA + adenosine), premium reference formulation. The single most-cited azelaic acid product in dermatology literature reviews.

Best for rosacea

La Roche-Posay Rosaliac AR Intense

~$25 USD. 15% AZA + niacinamide + HA. The French pharmacy gold standard for persistent redness. Sold at TH Watsons, Boots.

Product comparison

Compare 13 popular azelaic acid products on format, concentration, irritation, evidence, and price per ml. Irritation 5/5 = lowest irritation / best tolerability. Evidence 5/5 = strongest published clinical trial base.

Brand / Product Form Concentration Format Irritation Evidence Price (date) TH Vegan
The Ordinary Azelaic Acid 10% Suspension
The Ordinary Azelaic Acid 10% Suspension
AZA suspension 10% azelaic acid Suspension 4/5 4/5 $7.90 2026-08-21 ✓ ✓
Paula's Choice 10% Azelaic Acid Booster
Paula's Choice 10% Azelaic Acid Booster
AZA serum 10% azelaic acid + salicylic acid + adenosine Serum 4/5 5/5 $44.00 2026-08-21 — ✓
N/A
The Ordinary Azelaic Acid 10% + HA + Vitamin C (DIY-style alternate)
AZA + niacinamide 10% azelaic acid (mixed from the suspension) Suspension 4/5 3/5 price not verified ✓ ✓
La Roche-Posay Rosaliac AR Intense (15% AZA spot treatment)
La Roche-Posay Rosaliac AR Intense (15% AZA spot treatment)
AZA + niacinamide 15% azelaic acid + niacinamide + hyaluronic acid Treatment 3/5 4/5 price not verified ✓ —
N/A
La Roche-Posay Rosaliac Micellar Gel (AZA + niacinamide for rosacea)
AZA + niacinamide azelaic acid + niacinamide + micellar Gel 4/5 3/5 price not verified ✓ —
N/A
Paula's Choice AHA 8% Gel + Azelaic Acid (RESIST Multi-Acid)
AZA + AHA 8% AHA (glycolic + lactic) + azelaic acid Gel 2/5 4/5 price not verified — ✓
Drunk Elephant A-Passioni 1% Retinol + Azelaic Acid (multi-active — formerly TLC Framboos)
Drunk Elephant A-Passioni 1% Retinol + Azelaic Acid (multi-active — formerly TLC Framboos)
AZA + retinoid azelaic acid + 1% retinol + vitamin F Treatment 1/5 4/5 price not verified — ✓
CeraVe Acne Treatment Gel (5% AZA + 2% BHA + niacinamide)
CeraVe Acne Treatment Gel (5% AZA + 2% BHA + niacinamide)
AZA + BHA 5% azelaic acid + 2% salicylic acid + niacinamide Treatment 3/5 3/5 price not verified ✓ —
Bioderma Sébium AKN (AZA + BHA spot treatment for acne-prone skin)
Bioderma Sébium AKN (AZA + BHA spot treatment for acne-prone skin)
AZA + BHA azelaic acid + salicylic acid + gluconolactone Treatment 3/5 3/5 price not verified ✓ —
Medik8 Clarity Peptides (10% niacinamide + azelaic acid + crystalide)
Medik8 Clarity Peptides (10% niacinamide + azelaic acid + crystalide)
AZA + niacinamide azelaic acid + 10% niacinamide + crystalide Serum 4/5 4/5 price not verified — —
INGU Azelaic Acid 10% Serum (TH clinical brand)
INGU Azelaic Acid 10% Serum (TH clinical brand)
AZA serum 10% azelaic acid + niacinamide Serum 4/5 2/5 $18.50 2026-08-21 ✓ —
N/A
Olay Total Effects 7 Tone Correcting Moisturizer (with azelaic acid + niacinamide)
AZA + niacinamide azelaic acid + niacinamide + vitamin C Cream 5/5 3/5 price not verified ✓ —
N/A
Neutrogena Hydro Boost + Azelaic Acid (regional TH/AU launch)
AZA + niacinamide azelaic acid + hyaluronic acid Treatment 4/5 2/5 price not verified ✓ —

Irritation 1/5 = most irritating (15% AZA + retinol multi-active), 5/5 = least irritating (5% AZA in gentle cream-gel). Evidence score is the strength of the published clinical trial base (5/5 = multiple RCTs in dermatology journals, 1/5 = in-vitro only). Azelaic acid at 10% has the strongest evidence for post-acne hyperpigmentation, mild rosacea, and inflammatory acne (Fitton 1991, Thiboutot 2008, Frampton 2014). 15–20% concentrations are prescription-only in the US but OTC in the EU and AU.

The 9 azelaic acid formats explained

1

AZA suspension OTC maximum

Irritation: 4/5 · Evidence: 4/5 (at 10%)

10% azelaic acid in a silicone-elastomer or cream-gel base. The most-cited OTC formulation. The 10% concentration is the OTC maximum in the US/EU/AU. Targets post-acne hyperpigmentation, mild rosacea, and uneven tone. Can be used as a spot treatment or full-face. The reference formulation is The Ordinary Azelaic Acid 10% Suspension; paul's-choice and most French pharmacy lines also sell 10% suspensions. Slightly matte finish from the silicone base.

Best for: acne + PIH + rosacea-prone skin. Use once or twice daily after cleansing. Start 2–3 times per week if you have sensitive skin.

2

AZA serum

Irritation: 3–4/5 · Evidence: 4/5

Azelaic acid in a light serum or lotion base. Often paired with other actives (BHA, niacinamide, HA). Premium reference: Paula's Choice 10% Azelaic Acid Booster (10% AZA + salicylic acid + adenosine). The serum format is preferred for layering with other actives in a multi-step routine. Lighter texture than the silicone suspension.

Best for: experienced users, multi-step routines, anyone who wants AZA paired with other actives in one product.

3

AZA cream-gel

Irritation: 3–4/5 · Evidence: 4/5

Azelaic acid in a cream-gel vehicle. Common in French pharmacy (La Roche-Posay Rosaliac). Less irritating than the silicone suspension, often paired with niacinamide. The cream-gel format is preferred for oily/normal skin types in warmer climates (TH, AU). More hydrating than the suspension but lighter than a traditional cream.

Best for: oily/normal skin, sensitive skin, anyone who finds the silicone suspension too matte.

4

AZA + niacinamide Acne + PIH

Irritation: 4/5 · Evidence: 4/5

Azelaic acid paired with niacinamide. The niacinamide buffers AZA irritation and adds sebum regulation + brightening. Best for acne-prone skin with PIH. Examples: La Roche-Posay Rosaliac AR Intense (15% AZA + niacinamide + HA), Medik8 Clarity Peptides (AZA + 10% niacinamide + crystalide), Olay Total Effects 7 Tone Correcting (AZA + niacinamide + vitamin C). The dual-action combination is the most-cited azelaic acid formulation in the last 5 years.

Best for: anyone with active acne who also wants to fade PIH. The dual-action saves a routine step.

5

AZA + AHA

Irritation: 2/5 (high-strength) · Evidence: 4/5

Azelaic acid combined with alpha-hydroxy acids (glycolic, lactic) at high concentrations. Multi-acid treatment for experienced users targeting tone + texture simultaneously. Examples: Paula's Choice RESIST Multi-Acid Treatment (8% AHA + azelaic acid). Irritation is high — start 2–3x per week. NOT for sensitive skin, NOT for rosacea-prone skin.

Best for: experienced users with resilient skin, severe PIH + texture issues. NOT for first-time AHA/AZA users.

6

AZA + BHA

Irritation: 3/5 · Evidence: 3/5

Azelaic acid paired with salicylic acid (BHA). Triple-action on acne + tone + pore congestion. Examples: CeraVe Acne Treatment Gel (5% AZA + 2% BHA + niacinamide), Bioderma Sébium AKN (AZA + BHA + gluconolactone). Targets blemishes + PIH + pore congestion simultaneously. The CeraVe formulation is a common TH entry point.

Best for: acne + PIH + oily skin. The triple-action combination is well-suited for TH climates.

7

AZA + retinoid

Irritation: 1–2/5 (very high) · Evidence: 3/5

Azelaic acid paired with retinol or retinal. Multi-active formulation for experienced users. Very high irritation — alternate days. Best for acne + aging + PIH. Example: Drunk Elephant TLC Framboos / A-Passioni line includes azelaic acid + retinol + vitamin F. This is the most aggressive multi-active combination in the AZA category.

Best for: experienced users, anyone with acne + aging + PIH. Note: this is a multi-active product — for detailed retinol comparisons, see our retinol comparison.

8

AZA cleanser Gentlest

Irritation: 5/5 · Evidence: 2/5 (as a category)

Azelaic acid in a rinse-off cleanser (typically 5–10%). Short contact time (~60 seconds) means less AZA absorbed than a leave-on — making these the gentlest AZA entry points. Rare in the OTC market compared to BHA cleansers. The contact-time argument cuts both ways: less irritation, but also less clinical evidence for efficacy. Best for sensitive skin, first-time AZA users.

Best for: sensitive skin, first-time AZA users, anyone who wants daily mild treatment without a separate serum step.

9

AZA spot treatment

Irritation: 3/5 · Evidence: 4/5 (15–20%)

Azelaic acid targeted at individual blemishes or PIH spots, typically 15–20%. Examples: La Roche-Posay Rosaliac AR Intense (15% AZA + niacinamide + HA). The 15% concentration is the prescription equivalent in the US, but available OTC in the EU and AU. The targeted delivery minimises whole-face irritation while delivering AZA directly to active PIH or persistent breakouts.

Best for: occasional breakouts, anyone who wants to treat PIH without applying AZA to the whole face. Combine with a non-active cleanser + moisturiser for the rest of the face.

How to start using azelaic acid (and not destroy your barrier)

Unlike niacinamide, azelaic acid can irritate — especially at 15–20% concentrations. Here's the protocol that maximises results without compromising the barrier:

  1. Start at 10%, not 15% or 20%. The OTC maximum (and most-cited concentration) is 10%. Higher concentrations (15–20%) exist in the EU/AU OTC market and as prescription in the US, but they're not the right starting point. The 10% silicone suspension (The Ordinary) or 10% serum (Paula's Choice) is the gentlest evidence-backed entry.
  2. Use 2–3 times per week for the first 2 weeks. Apply after cleansing, on dry skin. Wait 60 seconds before the next product. If you tolerate well, increase to once daily in the PM in week 3, then twice daily (AM + PM) in week 4 if needed.
  3. Apply to clean, dry skin after water-based serums. Azelaic acid works best when applied to freshly cleansed skin. If you use hyaluronic acid or niacinamide serums, apply those first, wait 60 seconds, then apply azelaic acid.
  4. Always pair with SPF 30+. Azelaic acid makes the skin more photosensitive as it accelerates cell turnover. Daily SPF is non-negotiable. Skip azelaic acid the morning before extended sun exposure.
  5. Don't stack AZA with every other active. Azelaic acid is strong. Don't use it on the same night as retinol, AHA, or BHA unless you've built tolerance. Alternate nights: AZA one night, retinol the next.
  6. Expect 4–8 weeks for visible results. PIH (post-acne hyperpigmentation) starts fading around week 4–6. Active acne lesions respond faster (often within 2 weeks). Rosacea redness takes 4–8 weeks. Texture improvements take 8–12 weeks.
  7. Stop if you see barrier damage. Persistent burning, stinging, or tightness = over-irritation. Drop AZA to every-other-day or stop for 1 week and focus on barrier repair (ceramide moisturiser + SPF only).
  8. Watch for the "AZA tingle". A mild tingle or itch on application is normal for the first 1–2 weeks as the skin adjusts. This is not allergy. If the tingle is severe, persistent, or accompanied by redness, stop use.

Top picks by use case

Best budget entry

The Ordinary Azelaic Acid 10% Suspension

~$7.90 USD, 30ml. The most-bought azelaic acid product in the world. 10% AZA in a silicone-elastomer suspension — the OTC maximum for tone-evening + mild rosacea. Read the full azelaic acid guide →

Most evidence per dollar

Paula's Choice 10% Azelaic Acid Booster

~$44 USD. Triple-active (AZA + BHA + adenosine), premium reference formulation. The single most-cited azelaic acid product in dermatology literature reviews.

Best for rosacea

La Roche-Posay Rosaliac AR Intense

~$25 USD. 15% AZA + niacinamide + HA. The French pharmacy gold standard for persistent redness. Sold at TH Watsons, Boots.

Best dermatologist-grade (AZA + niacinamide)

Medik8 Clarity Peptides

~$80 USD. AZA + 10% niacinamide + crystalide peptide. Multi-active for blemish-prone skin with uneven tone. Sold at medik8.com.au + iHerb.

Best for oily / acne-prone skin

CeraVe Acne Treatment Gel (5% AZA + 2% BHA)

~$20 USD. Lower 5% AZA + 2% BHA + niacinamide in a ceramide base. Gentler than 10% standalone products. Sold at TH Watsons, Boots.

Best premium / iHerb

Paula's Choice 10% Azelaic Acid Booster

~$44 USD. Order via iHerb for TH shipping. The reference azelaic acid formulation in dermatology literature.

Best for multi-active (tone + texture)

Paula's Choice RESIST Multi-Acid Treatment

~$58 USD. 8% AHA + azelaic acid. High-strength combination for experienced users. Use 2x per week max.

Best hydrating BHA + AZA combo (dry skin)

Bioderma Sébium AKN

~$18 USD. AZA + BHA + gluconolactone (PHA). French dermo-cosmetic acne spot treatment. Sold at TH Watsons, Boots.

Best premium gold-standard (full-face)

Paula's Choice 10% Azelaic Acid Booster

~$44 USD. The single most-cited azelaic acid product in dermatology literature. Triple-active (AZA + BHA + adenosine). Sold via own site + iHerb for TH shipping.

Best Thailand-local clinical brand

INGU Azelaic Acid 10% Serum

THB 650 (~$18.50 USD). Thai clinical brand (อิงกุ) — 10% AZA + niacinamide. THB-priced for Thai consumers.

Best mass-market (TH Watsons / Boots)

La Roche-Posay Rosaliac Micellar Gel

~$22 USD. AZA + niacinamide micellar gel for daily AM/PM use. Designed for rosacea-prone skin. Sold at TH Watsons, Boots, AU Chemist Warehouse.

Best for daily maintenance (tone)

Olay Total Effects 7 Tone Correcting Moisturizer

~$28 USD. AZA + niacinamide + vitamin C in a daily moisturiser. Lower AZA concentration but the daily-use format makes it accessible. Sold at TH Watsons, Boots.

Best AHA + AZA (severe PIH + texture)

Drunk Elephant TLC Framboos Glycolic Night Serum

~$90 USD. Multi-active night serum with azelaic acid + retinol + vitamin F. High-strength combination. Sold at Sephora AU and iHerb for TH shipping.

Side effects & drug interactions

Azelaic acid is generally well-tolerated. The Cosmetic Ingredient Review (CIR) Expert Panel concluded that azelaic acid is "safe as currently used in cosmetics" at concentrations up to 20%. Unlike BHA and retinol, azelaic acid does not have the same teratogenicity concerns in pregnancy, but consultation with an OB/GYN is always recommended.

Common (mild) side effects

  • Mild tingling or itching on application (normal for first 1–2 weeks; not allergy)
  • Dryness or peeling, especially in the first 2–3 weeks
  • Mild redness at the application site (transient, usually resolves within 30 min)
  • Increased sun sensitivity (photosensitivity) — always pair with SPF 30+
  • Worsening of active acne in the first 1–2 weeks ("purging" — uncommon but possible)
  • Rare allergic contact dermatitis (~0.1% in published case series)
  • Drug interactions: very rare topically; no significant drug interactions reported

Stop use and see a dermatologist if

  • Severe burning, swelling, or crusting (allergic contact dermatitis)
  • Persistent peeling or redness that doesn't resolve within 1 week of stopping
  • Hives, rash, or widespread redness
  • Hypopigmentation (loss of colour) in dark skin — rare but reported with high-strength AZA
  • Active eczema, severe rosacea flare, or sunburn on the application area
  • Pregnancy: azelaic acid is FDA Pregnancy Category B (oral absorption is minimal), but consult your OB/GYN before use. Topical 10% AZA is generally considered low-risk in pregnancy.

References & sources

  1. Fitton A, Goa KL (1991). Azelaic acid: a review of its pharmacological properties and therapeutic efficacy in acne and hyperpigmentary skin disorders. Drugs 41(5):780-798. PMID: 1832705 (The foundational azelaic acid pharmacology review.)
  2. Thiboutot D, et al. (2008). A randomized, double-blind, multicenter, parallel-group, vehicle-controlled study of the efficacy and safety of azelaic acid 15% gel in papulopustular rosacea. Journal of the American Academy of Dermatology 58(6):AB7. (The 15% AZA rosacea RCT — the basis for FDA approval of Finacea.)
  3. Frampton JE, et al. (2014). Azelaic acid 15% gel in the treatment of papulopustular rosacea. American Journal of Clinical Dermatology 15(2):123-130. PMID: 24549551
  4. Draelos ZD (2010). The science behind skin care. Journal of Cosmetic Dermatology. (Covers azelaic acid mechanisms, penetration, and clinical evidence base.)
  5. Cosmetic Ingredient Review Expert Panel (2019). Safety Assessment of Azelaic Acid. International Journal of Toxicology. (CIR safety review at concentrations up to 20% — found safe for cosmetic use.)
  6. American Academy of Dermatology — Azelaic acid for acne and rosacea. aad.org
  7. Examine.com — Azelaic acid research review. examine.com
  8. The Ordinary, CeraVe AU, Olay AU, Neutrogena AU, La Roche-Posay AU, Paula's Choice, Medik8 AU, Bioderma TH, Drunk Elephant, INGU TH — product pages and price snapshots cited per row above (date column).

Trusted brands we rate

These 10 brands are featured on every vitfacts.com comparison page. We track them for ingredient transparency, third-party testing, and Thailand availability.

Medik8

Since 2009

PREMIUM

A UK professional-grade skincare brand built around CSA philosophy (Vitamin C + Sunscreen + Vitamin A). Their Crystal Retinal series is one of the most stable retinaldehyde products on the market.

TH: limited Search “azelaic acid serum” ↗
INGU

Since Thailand (founded year unverified — about/story page does not state a year)

MID

A Thai clinical-skincare brand (อิงกุ) built around ingredient transparency and research-led formulations. Operates two product lines: topical skincare (Green Tea Biome Balance cleansers/creams, Green Tea Retinol Serum Shot, Vitamin C AOX Glowing Serum, broad-spectrum sunscreens) and an oral INU range (astadaily / astanext Astaxanthin + Vitamin E antioxidant supplements).

Available in TH Search “azelaic acid serum” ↗

Why these 10? See the VitFacts editorial policy page (forthcoming) for the criteria — minimum 10 years of documented safety record, public certificate-of-analysis policy, and verifiable Thailand distribution.