Azelaic acid: uses, strength, evidence, and side effects

At a glance

U.S. status

Prescription or cosmetic (U.S.)

Jobs

Rosacea bumps and redness · Acne · Melasma and post-inflammatory marks · Pregnancy-compatible option

Watch for

Tingling and itch for the first weeks are normal. Prescription 15–20% is a drug; 10% cosmetics are a different, weaker product with the same name.

Access

Generic 15% gel and 20% cream are inexpensive with a prescription; the foam is brand-only. Cosmetic 10% products are OTC at a wide range of prices.

Evidence by use

A Papulopustular rosacea

FDA-approved; network meta-analyses rank it with metronidazole and ivermectin for inflammatory lesions.

A Acne

FDA-approved 20% cream; Cochrane 2020 found moderate-quality evidence it works, somewhat less than benzoyl peroxide or retinoids.

B Melasma and post-inflammatory hyperpigmentation

Randomized comparisons show benefit similar to hydroquinone 4% in some trials, with slower onset.

C Cosmetic 10% products

Lower strength and different vehicles; evidence is inferred from prescription data.

Forms and strengths

15% gel and foam (Rx, generic gel; approved for rosacea)
20% cream (Rx, generic; approved for acne)
10% and lower in cosmetics

How to use it

Thin layer twice daily (rosacea and acne) or nightly alongside sunscreen for pigment. Expect 8–12 weeks. Can be layered with retinoids once tolerated.

Side effects and cautions

Tingling, burning, or itch early on
Dryness
Rare lightening of surrounding skin in darker tones

Get advice first if

Generally considered compatible with pregnancy and breastfeeding, which is why it anchors many pregnancy routines; confirm with your clinician. Mild hypopigmentation can occur around treated spots.

Regulatory status

FDA-approved prescription drug (15% for rosacea, 20% for acne). Cosmetic azelaic acid at 10% or less is sold without review. Some countries sell 15–20% OTC.

In the trends

'Azelaic acid for everything' is a fair trend as trends go; the prescription strength is what the evidence describes.

Sources on file

These links support the claims above. Reviewed September 1, 2026. Drug labels link to DailyMed searches so the current label is always one click away.