Can you use azelaic acid with salicylic acid?
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Azelaic acid and salicylic acid are both used for acne, so the useful questions are about timing and irritation: when to use each, and what to do if your skin gets sore.
What each one does
What azelaic acid does
Used for acne, redness and dark spots. It may itch, burn or sting in the first weeks, so people usually start once a day.
Usual over-the-counter strength: 10%
What salicylic acid does
A beta hydroxy acid (BHA) sold over the counter for acne. It can dry skin, so labels say to start once a day.
Usual over-the-counter strength: 0.5–2%
Morning and night, not at once
Salicylic acid is an over-the-counter acne drug, and its FDA labeling warns that dryness and irritation are more likely when you use another topical acne medicine at the same time. Azelaic acid is that other acne medicine here, so the gentler plan is to split them: azelaic acid in the morning and salicylic acid at night. Mayo Clinic suggests using one product in the morning and another at night to help prevent irritation.
Azelaic acid is the one more likely to sting early on. On the 15% gel label, about 29% of trial users reported burning, stinging or tingling and 11% itching, usually in the first few weeks.
SourcesFDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)FDA label: azelaic acid gel 15% for rosacea (2021)Mayo Clinic: Nonprescription acne treatment (2024)
What each one does
Azelaic acid helps unclog pores, works on the bacteria behind acne, and can fade the dark marks left after a breakout clears. It also blocks tyrosinase, an enzyme in pigment production; the FDA has approved a 15% gel for rosacea and a 20% cream for acne. More on it in the azelaic acid guide.
Salicylic acid is oil-soluble, so it reaches into pores and dissolves the oil inside, which makes it a good fit for blackheads and whiteheads. It is sold at 0.5 to 2%. A sensible habit is to use one new product for a while before adding another, so you can tell what your skin is reacting to.
SourcesMayo Clinic: Nonprescription acne treatment (2024)American Academy of Dermatology: Acne diagnosis and treatment (updated June 2024)Petrovici et al., Pharmaceuticals, 2025 (review of azelaic acid)Cleveland Clinic: Facial acids, know what you need (Samantha Stein, PA-C, March 2023)
If your skin gets sore
If layering or alternating the two leaves skin stinging, dry or red, the labels point the same way:
- Cleanse with a very mild soap or a soapless lotion and pat dry; keep alcohol-based cleansers, astringents, abrasives and peeling agents off the treated skin.
- Use a daily moisturizer; the AAD says it helps skin tolerate acne treatments such as salicylic acid.
- With leave-on acne products, FDA labeling says to cut back to once a day or every other day if dryness or peeling becomes bothersome.
- Stop azelaic acid if sensitivity or severe irritation develops and lasts.
SourcesFDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)FDA label: azelaic acid gel 15% for rosacea (2021)DermNet: Salicylic acid (2024)American Academy of Dermatology: Moisturizer if you have acne
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Questions people ask
Which one should I start first?
Start just one and add the second once your skin feels calm. There is no tested order, so this is about limiting irritation: salicylic acid's label warns that a second acne medicine makes dryness and irritation more likely. Give it time, too; azelaic acid usually shows some improvement after about a month, with the most benefit after around six months of steady use.
SourcesFDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)DermNet: Azelaic acid (2022)
Can I layer them in the same routine step?
You can, but layering two actives tends to bring more stinging, dryness or redness. Apply azelaic acid in a thin layer and let it dry before anything goes on top; if your skin reacts, drop back to using only one for a while.
SourcesFDA rule: 21 CFR 333.310, 333.320 and 333.350 (OTC acne drugs)FDA label: azelaic acid gel 15% for rosacea (2021)
Do I still need sunscreen?
Yes. Salicylic acid is a beta hydroxy acid, and the FDA advises using sun protection with a BHA product. That fits the morning routine here, where azelaic acid is followed by a broad-spectrum SPF 30 or higher.
SourceFDA: Beta Hydroxy Acids
Is this pair safe during pregnancy?
Azelaic acid is thought to be safe to use during pregnancy, per the AAD. Topical salicylic acid is generally considered safe as well, but because it can be absorbed through the skin, tell your doctor you are pregnant before using it. See the pregnancy-safe skincare guide for the wider picture.
SourcesDermNet: Salicylic acid (2024)American Academy of Dermatology: Dermatologist-approved pregnancy skin care (updated June 2025)InfantRisk Center: An overview of the safety of skin care products during pregnancy (2020)
Sources
- Evidence for this pair: expert consensus (no study or label tested this advice directly)
American Academy of Dermatologyaad.org
- Acne diagnosis and treatment (updated June 2024)
Azelaic acid opens clogged pores, works on the bacteria that cause acne and can treat the dark spots that appear when acne clears.
- Moisturizer if you have acne
A daily moisturizer helps skin tolerate acne treatments including salicylic acid; apply after washing, leaving some water on the face; choose oil-free or non-comedogenic.
- Dermatologist-approved pregnancy skin care (updated June 2025)
Azelaic acid is thought to be safe to use during pregnancy.
US Food and Drug Administrationfda.gov
- FDA label: Finacea (azelaic acid) Gel, 15%
Azelaic acid may cause itching, burning or stinging early on. 15% gel for the inflammatory papules and pustules of mild to moderate rosacea; not evaluated for redness without them; reassess the diagnosis if no improvement after 12 weeks; burning/stinging/tingling in 29% and itching in 11%, usually in the first few weeks; very mild soap or soapless lotion, pat dry with a soft towel; no occlusive dressings; avoid alcoholic cleansers, astringents, abrasives and peeling agents; stop if sensitivity or severe irritation persists; cosmetics after the gel has dried.
- Beta Hydroxy Acids
Salicylic acid is the BHA most commonly used in cosmetics (not a true BHA to a chemist); test a BHA product on a small area first; follow the label; stop if irritation or prolonged stinging; use sun protection with a BHA product.
DermNetdermnetnz.org
- Azelaic acid
Some improvement after one month, maximum results after six months of continuous use.
- Salicylic acid (2024)
Avoid alcohol-containing preparations, abrasive soaps and cleansers, and drying or exfoliating cosmetics on the treated area; salicylic acid can be absorbed through the skin, so tell your doctor if pregnant.
Electronic Code of Federal Regulationsecfr.gov
- FDA rule: 21 CFR 333.350 (OTC acne drug labeling)
Irritation more likely with another topical acne medication. Salicylic acid 0.5–2% is an OTC acne active; labels warn irritation and dryness are more likely with another topical acne medication; leave-on products: reduce to once a day or every other day if bothersome dryness or peeling; the rule also covers products that are applied and removed, such as soaps and masks.
Mayo Clinicmayoclinic.org
- Nonprescription acne treatment (2024)
Apply one product in the morning and another at night to help prevent irritation; start benzoyl peroxide at a 2.5% water-based strength; lower strengths are as effective as higher ones; salicylic acid comes in 0.5–2% leave-on and wash-off products.
Cleveland Clinicclevelandclinic.org
- Facial acids, know what you need (Samantha Stein, PA-C, March 2023)
AHAs are water-soluble; BHAs are oil-soluble, penetrate deeper into pores and dissolve sebum, so salicylic acid suits blackheads and whiteheads; glycolic acid smooths the surface and helps discoloration and fine lines but can be very strong, start once or twice a week at night; lactic acid is gentler, good for sensitive skin; salicylic acid can be used twice a day by most; use one product a while before adding another; purging is normal, can last a few weeks, is often mistaken for a breakout or allergy, fine unless heavy stinging, itching or redness.
InfantRisk Center, Texas Techinfantrisk.com
- An overview of the safety of skin care products during pregnancy (2020)
Topical salicylic acid in pregnant women is considered safe.
Studies and other sources
- Petrovici et al., Pharmaceuticals, 2025 (review of azelaic acid)mdpi.com
Azelaic acid competitively inhibits tyrosinase; the FDA approved a 15% gel for rosacea and a 20% cream for acne; it may be compatible with vitamin C or niacinamide, but synergistic effects have yet to be fully substantiated.