Azelaic Acid
Multi-functionalBrighteningAcne TreatmentNaturalAlso known as: Azelaic, Nonanedioic Acid
A naturally occurring dicarboxylic acid with antibacterial, anti-inflammatory, and antioxidant properties. Effective for acne, rosacea, and hyperpigmentation.
Routine placement
Treatment · AM & PM
Time to results
4-8 weeks for acne improvement; 12-24 weeks for hyperpigmentation
Treats acne, reduces rosacea redness, fades post-inflammatory hyperpigmentation, gentle exfoliation, antibacterial properties.
Apply 10-20% concentration morning and/or evening. 10% available OTC, 15-20% by prescription. Apply to clean skin before moisturizer.
Beginner
10%
Intermediate
15%
Advanced
20% (prescription)
Strong evidence for acne and rosacea treatment. Comparable to benzoyl peroxide for mild-moderate acne with fewer side effects. Effective for melasma treatment.
Key Studies
Azelaic acid: a review of its pharmacological properties (2010)
Drugs
Azelaic acid has anti-inflammatory, antibacterial, and anti-keratinizing properties. At 15-20%, it is effective for both acne vulgaris and rosacea.
Azelaic acid vs hydroquinone for melasma (1991)
Journal of the American Academy of Dermatology
20% azelaic acid was as effective as 4% hydroquinone for treating melasma, without the side effects of skin bleaching.
Azelaic acid in skin disorders (2008)
Expert Opinion on Pharmacotherapy
Azelaic acid selectively targets abnormal melanocytes, making it effective for hyperpigmentation without affecting normal skin pigmentation.
Cautions
May cause mild tingling or itching initially. Generally very well tolerated. Safe during pregnancy (one of few actives that is).
Is azelaic acid good for rosacea?
Yes. 15% azelaic acid is FDA-approved for rosacea treatment. It reduces papules, pustules, and redness with fewer side effects than metronidazole.
Can I use azelaic acid with retinol?
Yes. Azelaic acid is gentle enough to layer with retinol. Apply azelaic acid first (thinner texture), then retinol.
Does azelaic acid bleach skin?
No. Unlike hydroquinone, azelaic acid only targets abnormal/overactive melanocytes. It will not lighten normal skin pigmentation.
Why is 20% azelaic acid prescription-only?
In many countries, 15-20% concentrations require a prescription. OTC products are typically 10% or less. The prescription strength works faster but the mechanism is the same.
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