The calming all-rounder for rosacea, breakouts and redness. What it does, what the research shows, prescription vs over the counter, and what 14 skincare experts said about it on camera.
Azelaic acid rarely gets the hype of retinol or vitamin C, so it is easy to be unsure where it fits. Is it for rosacea, acne or dark spots? Is a 10% serum enough, or do you need a prescription? Why does it itch? And is it really one of the safer choices in pregnancy?
Good news for the curious: the experts who talk about it tend to talk about it warmly, and they reach for it for rosacea, breakouts and redness above all. If you just want a name, the azelaic acid product they rate highest right now is The INKEY List Redness Relief Super Solutions 10% Azelaic Acid, with a Guru Score of 92% from 9 experts.
Azelaic acid's own Guru Score is 93%, from 30 mentions by 14 skincare experts, among them dermatologists, a cosmetic surgeon and a skincare consultant. The main note of caution is about dark spots. Dr. Daniel Sugai, a dermatologist, rates it for acne and rosacea but calls it a supporting player for pigmentation. Below, what the experts said sits next to what the studies found, so you can see where the two line up and where they part ways.
Azelaic acid is a skincare ingredient and prescription medicine used for rosacea, acne and uneven pigmentation. The experts we track recommend it, reaching for it most for rosacea, breakouts and redness. The research backs it best for rosacea and acne, with encouraging but older trials for melasma [2, 3, 4, 6]. The 15% gel and 20% cream are prescription medicines in the US and the UK [9, 10, 11, 12]. The common catch is tingling, burning or itch in the first few weeks [8].
| Question | What we found |
|---|---|
| What is it used for? | Rosacea bumps and redness, acne, and pigmentation such as melasma and post-acne marks [1, 2]. |
| Do skincare experts recommend it? | Yes, most of all for rosacea, breakouts and redness. |
| Do I need a prescription? | For the 15% gel and 20% cream, yes, in the US and the UK [9, 10, 11, 12]. Most off-the-shelf serums we track list 10%. |
| Does it sting? | It can. In rosacea trials of the 15% gel, 29% of people had burning, stinging or tingling and 11% had itch, usually in the first few weeks [8]. |
| How long until it works? | The UK labels say improvement usually shows after about 4 weeks [11, 12]. Rosacea trials ran for 12 weeks [8]. |
| Is it safe in pregnancy? | It is often described that way, and the AAD says it is thought to be safe, but the labels note there are no good studies in pregnant women. Ask your doctor first [10, 11, 13]. |
Azelaic acid is a naturally occurring acid [8]. In skincare it turns up in serums, gels, creams and cleansers, and at higher strengths it is a licensed prescription medicine [9, 12].
It is unusual because it does several jobs at once. It works against the bacteria involved in acne, it gently slows the build-up of skin cells that clogs pores, it calms inflammation, and it blocks tyrosinase, an enzyme pigment cells need to make melanin [1]. Lab work suggests it acts mainly on overactive pigment cells and leaves normal ones alone [1].
Despite the name, it is not an AHA or BHA. Its exfoliating effect is mild, which is part of why rosacea-prone skin can often use it [1].
Here is what each of them said on camera, with a link to the moment they said it.
Azelaic acid, love it love it love it love it. It's anti-inflammatory, also great for the redness [...] if you've ever used azelaic acid, a lot of people find [...] that it causes them to have some itch, which is not fun either.Watch ▸
But for dark spots, it's pretty mid. If you are dealing with melasma, hyperpigmentation, or dark spots on the face, I'd say hold off and pump the brakes on azelaic acid. [...] It's better for soothing irritated skin and for congested pores.Watch ▸
I absolutely love this fifteen percent azelaic acid gel and I would strongly recommend that you get yourself a nice prescription of this because it's beautiful.Watch ▸
This 20% is great for hyperpigmentation, for rosacea flares, for acne. I mostly use it in my T-zone when I struggle with acne and post acne marks. [...] It's very gentle and also safe to use during pregnancy.Watch ▸
Azelaic acid is a wonderful ingredient in its own right, particularly at minimizing breakouts, fading hyperpigmentation, reducing redness and inflammation. [...] Azelaic acid is really a holy grail pairing that more people should know and understand.Watch ▸
The experts are warm on azelaic acid, so the caveats are where the useful detail sits.
The strongest evidence is for rosacea. A systematic review of five randomised trials in 873 people found azelaic acid cut the number of rosacea bumps and the redness, and did at least as well as metronidazole, another standard rosacea treatment [3]. It did not shrink visible blood vessels [3]. A 2023 review of 43 randomised trials reached a similar verdict: azelaic acid beat a dummy cream for rosacea, acne and melasma, and often matched established treatments [2].
For acne it is a solid option rather than the strongest one. A Cochrane review found azelaic acid probably works less well than benzoyl peroxide, and found little or no difference between it and tretinoin [4].
For pigmentation the picture is encouraging but dated. In a 24 week trial of 329 women with melasma, 20% azelaic acid cream gave good or excellent results in 65% and did about as well as 4% hydroquinone, with no severe side effects such as allergic reactions [6]. A 2023 meta-analysis of six trials leaned slightly in azelaic acid's favour, but its authors call for larger, longer studies [5]. On the brown marks acne leaves, 20% azelaic acid and 5% tranexamic acid ended level in a 60 person trial, with more side effects on the azelaic acid side early on [7].
Most of these trials tested the 15% gel or the 20% cream. We found far less published research on the 10% serums sold off the shelf, so it is fair to treat their results as less certain.
In the US, the 15% gel (Finacea) is a prescription medicine for rosacea and the 20% cream (Azelex) is a prescription medicine for acne [9, 10]. In the UK, Finacea 15% gel and Skinoren 20% cream are both prescription only medicines, licensed for acne and, in the gel's case, rosacea [11, 12].
Then there are the serums and suspensions you can buy without a prescription. Most of the ones we track list 10%, and a few go to 15%. Several of our experts happily use them; Dr. Shereene Idriss and Dr. Jenny Liu both talk about prescription strengths too, and Dr. Jenny Liu points out that 20% is hard to get in the US without a prescription.
If you have rosacea or acne that is more than mild, or a cosmetic serum has not helped after a few months, a doctor can prescribe the stronger versions and check the diagnosis at the same time.
The prescription labels say to apply a thin layer twice a day, morning and evening, to clean skin [8, 10]. The US gel label suggests only very mild soaps or soapless cleansers alongside it [8].
Burning, stinging, tingling or itch are the usual side effects, and they tend to show up in the first few weeks and ease as you keep going [8, 11, 12]. Dr Dray notes that for a lot of people it is the itch, more than the sting, that bothers them, and suggests a moisturiser to help. If irritation is severe or does not settle, stop and see a doctor [8].
The UK label for the 20% cream suggests starting once a day, in the evening, for the first week, then moving to twice a day [12]. Keep it away from your eyes and mouth [8, 11].
There have been isolated reports of skin lightening after azelaic acid, and it has not been well studied in darker skin, so the US label advises watching for early signs [8, 10].
The UK labels say improvement usually shows after about 4 weeks [11, 12]. The US rosacea trials ran for 12 weeks, and the label advises a rethink if nothing has improved by then [8].
Azelaic acid is often recommended as a pregnancy-friendly option, and several of our experts say so on camera. The American Academy of Dermatology says it is thought to be safe to use during pregnancy, since animal studies have not shown birth defects [13]. The US gel label says very little is absorbed through the skin, so it is not expected to reach the baby [8].
The labels are still careful. Both the US cream label and the UK label say there are no adequate studies in pregnant women, and advise using it only when needed or with caution [10, 11]. For breastfeeding, the US gel label does not expect it to reach the baby, and the UK label says a baby should not touch treated skin or the breast [8, 11].
So it is one of the better-supported choices in pregnancy, unlike retinoids. Check with your doctor or midwife before you start.
Azelaic acid sits well alongside most routines. The usual rule applies: add one new active at a time, so you can tell what your skin is reacting to.
A favourite pairing with our experts. Mad About Skin says retinoids work better and irritate less alongside it, and Doctorly endorse tretinoin plus azelaic acid. We found little research testing whether the pair is gentler together, and one melasma study described in a 2024 review reported notable side effects with the combination [1]. Let your skin settle into one before adding the other.
We found no trial of this pairing. If you want both, add them one at a time so you can tell how your skin takes each.
They have been tested head to head on acne marks, where they ended level [7]. We found no study of the two used together. Introduce them one at a time.
Azelaic acid already exfoliates a little [1], and irritation adds up when you stack acids. If you also use an AHA or BHA, try them on different nights.
The best one for you depends on your skin and your budget, so here is the top-rated pick for each need, from the products below.
The INKEY ListRedness Relief Super Solutions 10% Azelaic Acid
Smooth formula without graininess
92%Guru Score from 9 experts
Best budget pick
Peach SlicesRedness Relief Azelaic Acid Serum
Radiant finish without tingling or stinging
86%Guru Score from 6 experts
Best for sensitive skin
Theramid15% Azelaic Acid Treatment
Smooth, non-gritty texture despite high strength
85%Guru Score from 3 expertsA high score for the ingredient does not carry over to every product that contains it. Strength, formula and what else is in the bottle all change the verdict. These are the highest-scoring products with azelaic acid in the name that at least three experts have rated, ranked by Guru Score.
The INKEY ListRedness Relief Super Solutions 10% Azelaic Acid
Rated by 9 experts
The catch: Risk of irritation if layered with other actives
92%Guru Score
Dr Sam'sNeutralizing Azelaic Acid Gel
Rated by 4 experts
89%Guru Score
Peach SlicesRedness Relief Azelaic Acid Serum
Rated by 6 experts
86%Guru Score
Theramid15% Azelaic Acid Treatment
Rated by 3 experts
The catch: May cause mild prickling on first use
85%Guru Score
Paula's Choice10% Azelaic Acid Booster
Rated by 22 experts
The catch: Will pill on skin, best used at night
81%Guru Score
NaturiumAzelaic Acid Emulsion 10%
Rated by 7 experts
81%Guru Score
FinaceaAzelaic Acid Gel 15%
Rated by 10 experts
The catch: Stings and burns, especially on sensitive skin
75%Guru Score
Geek & GorgeousA-Pad Azelaic Acid Serum
Rated by 3 experts
The catch: Results take 8 to 12 weeks to show
75%Guru Score
NinelessA-Control 10% Azelaic Acid Serum
Rated by 3 experts
The catch: Contains bergamot leaf extract
77%Guru Score
The OrdinaryAzelaic Acid Suspension 10%
Rated by 23 experts
The catch: Pills under makeup, so best used at night
75%Guru Score
SkinCeuticalsH.A. Intensifier with Arbutin and Azelaic Acid
Rated by 7 experts
The catch: Oxidises over time if stored in warm conditions
75%Guru Score
Allies of SkinAzelaic & Kojic Advanced Clarifying Serum
Rated by 5 experts
The catch: Results not visible for everyone
75%Guru ScoreAzelaic acid is used for rosacea, acne and uneven pigmentation such as melasma and post-acne marks. It fights acne bacteria, gently unclogs pores, calms inflammation and blocks an enzyme pigment cells need [1]. The skincare experts we track recommend it, most of all for rosacea and breakouts.
For the 15% gel and the 20% cream, yes. In the US, Finacea 15% gel and Azelex 20% cream are prescription medicines, and in the UK, Finacea 15% gel and Skinoren 20% cream are prescription only [9, 10, 11, 12]. Lower-strength serums, mostly 10% in the products we track, are sold without a prescription.
We cannot say from the research. Most of the trials behind azelaic acid used the 15% gel or the 20% cream [3, 5, 6, 8], and we found far less published research on 10% serums. Several of our experts still recommend 10% products as a good first step, with prescription strengths as the next one.
Yes, and rosacea is where the evidence is strongest. A review of five randomised trials in 873 people found azelaic acid reduced rosacea bumps and redness and did at least as well as metronidazole [3]. It did not help visible blood vessels [3]. The 15% gel is licensed for rosacea in the US and UK [8, 11].
Yes, though it is not the strongest acne treatment. It beats a dummy cream for acne [2], and a Cochrane review found it probably works less well than benzoyl peroxide but about as well as tretinoin [4]. The 20% cream is a licensed acne medicine in the US and UK [10, 12].
It can help, but expectations vary. In a 24 week trial of 329 women, 20% azelaic acid did about as well as 4% hydroquinone for melasma [6], and on acne marks it matched 5% tranexamic acid [7]. Dr. Daniel Sugai, a dermatologist, is less impressed, calling it a supporting player rather than the main treatment for dark spots.
Burning, stinging, tingling and itch are its most common side effects. In US rosacea trials of the 15% gel, 29% of people had burning, stinging or tingling and 11% had itch, usually in the first few weeks [8]. The UK labels say this tends to ease as treatment goes on [11, 12]. Dr Dray suggests a moisturiser to help with the itch.
It is widely seen as one of the safer options, but ask your doctor or midwife first. The American Academy of Dermatology says it is thought to be safe in pregnancy, as animal studies showed no birth defects [13], and very little is absorbed through the skin [8]. The US and UK labels note there are no adequate studies in pregnant women and advise caution [10, 11].
Yes. The prescription versions are applied twice a day, morning and evening [8, 10]. If your skin is sensitive, the UK label for the 20% cream suggests once a day in the evening for the first week, then building up [12].
Give it at least a month. The UK labels say improvement usually shows after about 4 weeks [11, 12], and the US rosacea trials ran for 12 weeks, with the label advising a rethink if nothing has improved by then [8]. Pigmentation tends to take longer: the main melasma trial ran for 24 weeks [6].
Yes, and our experts like the pairing. Mad About Skin says retinoids work better and irritate less alongside it. We found little research on whether the combination is gentler, and one melasma study reported notable side effects with azelaic acid plus tretinoin [1]. Start one first, let your skin settle, then add the other.
In a trial of 60 people with brown acne marks, 20% azelaic acid cream and 5% tranexamic acid ended level after 12 weeks, with more side effects in the azelaic acid group early on [7]. Azelaic acid also treats the acne itself [2, 4], so it can make sense if you are still breaking out.
Usually, but watch for one thing. The US labels note isolated reports of skin lightening after azelaic acid and say it has not been well studied in darker skin, so they advise watching for early signs [8, 10]. If you notice patches getting lighter, stop and see a doctor.
14 experts, 30 mentions, every one traced to a video you can watch. Sponsored takes are excluded.
This guide combines two kinds of information. The expert consensus comes from 30 mentions of azelaic acid by 14 skincare experts in their YouTube videos. Each one was read, given a Yay, Mixed or Nay verdict and linked to the moment it was said. Sponsored takes are excluded. The research sections summarise published studies and medical sources, listed in full above.
The Guru Score measures how warmly the experts talk about azelaic acid. It is not a measure of clinical effectiveness, and this guide is not medical advice. It has not been reviewed by a doctor.
This guide is general information, not medical advice. The Guru Score reflects how warmly the experts we track talk about azelaic acid; it is not a measure of clinical efficacy. Speak to a dermatologist or doctor about a diagnosed skin condition, and before using any medicine.
Dr. Mamina
Dr. Sam Ellis
Dr. Somji Skin
Hyram
Mixed Makeup
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Sincerely Miss Ash