Azelaic acid is a topical medication used mainly for:
- Acne: helps unclog pores, reduces Cutibacterium acnes, and calms inflammation.
- Rosacea: particularly inflammatory bumps and pustules. In the US, 15% gel is approved for mild-to-moderate rosacea papules and pustules.
- Post-acne dark marks / hyperpigmentation: inhibits tyrosinase and can reduce excess melanin production. It is also used for melasma.
How to use
- Apply a thin layer to clean, fully dry skin, usually once daily at first, then up to twice daily if tolerated.
- Common strengths: OTC 10%, prescription 15% gel/foam and 20% cream.
- Use moisturizer if needed, and sunscreen daily, particularly when treating pigmentation.
- Expect gradual improvement over 6-12 weeks.
Common side effects
- Mild burning, stinging, itch, dryness, peeling, or redness, often settling after the first 2-4 weeks.
- Reduce frequency or pause and seek advice if marked swelling, blistering, severe rash, or persistent irritation occurs.
- Avoid eyes, lips, mucous membranes, and broken skin; wash hands after application.
It has antimicrobial, anti-inflammatory, pore-normalizing, and pigment-reducing effects.
Dermatology, 2-Volume Set, p. 4865. The 2024 AAD acne guideline includes azelaic acid among evidence-based topical treatment options (
guideline record). For product-specific indications and instructions, see the
DailyMed 15% gel label and
20% cream label.Choose based on your main concern:
- Acne + dark marks / first time using it: start with 10% azelaic acid once nightly. It is usually the easiest to tolerate.
- Rosacea with red bumps or pus-filled spots: 15% azelaic acid gel/foam, usually prescription, is the standard option.
- Persistent acne or pigmentation not improving with 10% after 8-12 weeks: ask a dermatologist about 15% or 20%. Stronger is not always better if your skin becomes irritated.
For most people without a diagnosed rosacea condition, I would start with 10%. Apply a pea-sized amount to the whole affected area 2-3 nights a week for the first 1-2 weeks, then increase to nightly if comfortable. Use moisturizer and daily SPF 30+.
What are you treating: acne, acne dark spots, melasma, rosacea, or something else?Which 10% products are you choosing between? Send a photo, names, or links and I’ll pick one.
If you have not chosen yet, choose a
simple, fragrance-free 10% azelaic acid product, preferably a light gel or cream, not one loaded with exfoliating acids or essential oils. Avoid using it in the same routine at first with strong retinoids, AHAs/BHAs, or benzoyl peroxide if your skin is sensitive.If you are in India, get
Aziderm 10% Gel if your skin is oily or you mainly have acne/pimples. It contains 10% azelaic acid and is made for acne treatment (
product details).
Choose Aziderm 10% Cream instead if your skin is dry, easily irritated, or flaky. The active ingredient is the same, but cream usually feels more moisturizing.
Simple start:
- Use a pea-sized amount at night on clean, dry skin.
- Start 3 nights per week for 2 weeks.
- Then use nightly if there is no significant burning or peeling.
- Use moisturizer and sunscreen every morning.
Do not buy a product that combines azelaic acid with tretinoin or other strong actives for your first try.