Skin Care
Greatest For Darkish Spots? – Stunning With Brains
Jun
Final Up to date on June 24, 2026 by Giorgia Guazzarotti
Hydroquinone vs Azelaic Acid: which one is the best at treating darkish spots? For many years, hydroquinone has been thought of the gold commonplace for hyperpigmentation by dermatologists, however in the previous couple of years issues have began to alter. Azelaic acid has made an look on the skincare aisles on the similar time hydroquinone was leaving it. So when you have cussed hyperpigmentation and don’t need to go down the prescription route, is azelaic acid a great various? On this article, we’ll talk about the professionals and cons of every and finest merchandise, so you may make the selection that’s going to present YOU higher outcomes:
Azelaic Acid: What It Is, Advantages, And Aspect Results
WHAT IT IS
Azelaic acid is a naturally occurring acid that’s been utilized by dermatologists for years. It’s produced by a yeast known as Malassezia (or Pityrosporum) that already lives in your pores and skin, which is a bit wild! It began out as an zits remedy, after which individuals seen it was fading darkish spots too, and its popularity as a brightening ingredient took off from there.
HOW IT WORKS
This skin-lightening agent works by works by inhibiting tyrosinase, the enzyme your pores and skin cells use for melanin manufacturing (melanin is the pigment that causes darkish spots). Basically, it will get in the best way of the method that creates extra melanin within the first place. However what makes it totally different from most different brightening elements is that it solely targets the pores and skin cells which might be overproducing pigment. It leaves the traditional ones alone. That means you don’t find yourself with bizarre lighter patches across the space you had been treating, which might occur with stronger lightening elements.
Whereas it’s at it, Azelaic Acid additionally has anti-inflammatory properties, and that’s truly a much bigger deal than it sounds. Loads of darkish spots (particularly the ones left behind by zits, i.e. post-inflammatory hyperpigmentation) occur as a result of irritation tells your pores and skin to produce extra pigment as a response. Azelaic acid scavenges reactive oxygen species (principally, damaging free radicals generated throughout irritation), which implies it’s engaged on two fronts without delay: decreasing the prevailing pigment and dampening the inflammatory sign that might trigger new pigmentation to kind.
A 2024 randomised, double-blind, placebo-controlled trial printed in Dermatology and Remedy checked out 72 sufferers utilizing 15% AzA gel twice day by day for 12 weeks and located important enhancements in each post-inflammatory hyperpigmentation (PIH) and post-inflammatory erythema. An earlier pilot research printed within the Journal of Medication in Dermatology discovered that the identical 15% focus utilized twice day by day for 16 weeks resulted in over 50% of contributors exhibiting no PIH in any respect by the top of the research. That’s spectacular.
SIDE EFFECTS
What in regards to the security of azelaic acid? Aspect results are fairly delicate. Some individuals get a little bit of tingling after they first begin utilizing it, particularly at increased strengths, nevertheless it normally settles inside a number of weeks. It doesn’t make your pores and skin extra delicate to the solar. It’s even protected to make use of throughout being pregnant, which nearly nothing else on this class can say.
BEST PICKS:
- Facetheory Blemicalm Azelaic Acid 15% Clarifying Serum (£26.00): Loaded with 15% Azelaic acid and colloidal oatmeal, it helps deal with zits, soothe irritations, and lighten darkish spots. Obtainable at Facetheory
- Paula’s Selection 10% Azelaic Acid Booster ($36.00): It features a contact of Salicylic Acid to unclog pores too. Obtainable at Cult Magnificence, Paula’s Selection, and SpaceNK
- The Bizarre Azelaic Acid Suspension 10% ($12.20): A easy, no-frills method that simply works with out breaking the financial institution. Obtainable at Magnificence Bay, Cult Magnificence, The Bizarre, and Ulta
Hydroquinone: What It Is, Advantages, And Aspect Results
WHAT IT IS
Hydroquinone has been the go-to remedy for darkish spots in dermatology for many years, and for a great purpose: it really works, and it really works sooner than energetic elements for hyperpigmentation on the market. It’s a chemical compound initially derived from coal tar, although it’s now made synthetically in a lab.
HOW IT WORKS
Hydroquinone works by interfering with the enzymatic course of that produces melanin. Particularly, it competes with tyrosine (an amino acid) on the energetic web site of tyrosinase, primarily getting oxidised rather than tyrosine and stopping melanin from forming. It additionally reduces the switch of melanosomes (the tiny packages of pigment) from melanocytes into surrounding pores and skin cells, and at increased concentrations, it might be immediately cytotoxic to melanocytes. In plain English, it stops your pores and skin from making pigment, reduces how a lot of it will get handed into surrounding pores and skin cells, and in increased concentrations can principally swap off the cells producing an excessive amount of of it.
Used correctly and beneath supervision, hydroquinone cream will get wonderful outcomes. It’s been the primary line of administration for melasma, solar spots, post-inflammatory hyperpigmentation, and uneven pores and skin tone for a really very long time, and the proof base is substantial. Concentrations of two–4% are the medical candy spot for many topical functions, with 4% being the prescription commonplace in lots of nations.
SIDE EFFECTS
Hydroquinone has extra extreme negative effects than Azelaic Acid. The principle concern with hydroquinone (and that is actual, not simply fearmongering) is what occurs with extended, unsupervised use. Essentially the most critical facet impact is one thing known as exogenous ochronosis, the place as an alternative of fading your darkish spots, your pores and skin begins creating darkish bluish patches which might be even tougher to deal with. The chance is increased with darker pores and skin tones, increased concentrations, and persistent unmonitored use. For a very long time, we didn’t know why this occurs, however a 2025 research printed within the British Journal of Dermatology suggests the identical course of that makes hydroquinone work towards pigment can, over time, produce byproducts that sink deeper into the pores and skin and trigger the darkening.
Different negative effects embrace irritation, redness, and your pores and skin turning into extra delicate to the solar, which implies in the event you’re utilizing it and skipping sunscreen, you’re actively making issues worse. As for most cancers danger, this concern comes primarily from animal research utilizing very excessive oral doses, not from topical human use, and as of now, no most cancers knowledge has been reported in people utilizing topical hydroquinone.
Then there’s the entry situation. Within the UK and EU, hydroquinone is banned from beauty merchandise fully and is just obtainable on prescription. In the US it was pulled from store cabinets in 2020. So except you’re working with a dermatologist, you most likely can’t get your fingers on it anyway, which is a part of why azelaic acid has had such a second lately.
Azelaic Acid vs Hydroquinone: Which One Is Higher At Fading Darkish Spots?
As usually, the sincere reply in skincare is, it relies upon. BUT, they’re not as totally different when it comes to outcomes as individuals might anticipate. Let’s check out what medical research say:
A 2023 overview that pulled collectively six correct medical trials and almost 700 sufferers discovered that these utilizing azelaic acid ended up with noticeably much less pigmentation by the top of the research than the sufferers utilizing hydroquinone. Not dramatically extra, however constantly higher throughout six trials and almost 700 individuals. And crucially, the negative effects had been no worse. So azelaic acid received higher outcomes with out being tougher on the pores and skin. The basic research everybody cites (from means again in 1991!) in contrast 20% azelaic acid cream immediately towards 4% hydroquinone and located them principally equal at decreasing pigment depth and the scale of darkish patches.
There’s one space the place hydroquinone most likely does work sooner, and that’s very cussed, deep pigmentation within the brief time period. In case you’re coping with extreme melasma and dealing with a dermatologist, a brief course of hydroquinone beneath supervision can ship outcomes rapidly. The key phrase there may be brief. That is NOT an ingredient you need to use indefinitely.
For most individuals coping with post-acne darkish marks, solar spots, normal uneven pores and skin tone, azelaic acid is a powerful possibility you can truly purchase, use safely long run, and never fear about. The truth that it additionally calms irritation whereas it fades pigment makes it particularly good in case your darkish spots are coming from zits, since you’re treating the trigger and the consequence on the similar time. And no matter you’re utilizing, sunscreen each single morning. No negotiating on that one.
FAQs
Can you employ azelaic acid and hydroquinone collectively?
No. You solely want ONE pores and skin lightening remedy in your skincare routine. Mentioned that, hydroquinone is just really helpful for 3 months at a time. So use hydroquinone for 3 months, then swap to azelaic acid for 3 months, then again to hydroquinone for 3 months. You get the drill.
How lengthy does azelaic acid take to work on darkish spots?
Most medical research present significant enchancment from round 8–12 weeks with constant use. Topical remedy for any sort of hyperpigmentation is genuinely gradual. It mirrors your pores and skin’s cell turnover cycle, which takes roughly 28 days and slows as we age. Persistence is non-negotiable.
Is hydroquinone protected for darkish pores and skin tones?
Underneath dermatologist supervision, for an outlined brief interval, sure, it may be used safely. The chance of ochronosis is increased in darker pores and skin tones with long-term unsupervised use, which is strictly why medical oversight issues. Azelaic acid is mostly thought of a safer long-term possibility for deeper pores and skin tones due to the best way it selectively targets solely overactive pigment cells.
What are the options to hydroquinone and azelaic acid?
Different researched choices embrace kojic acid, tranexamic acid, vitamin C, alpha arbutin, glycolic acid, salicylic acid, niacinamide, and retinoic acid. None of them have fairly the identical quantity of head-to-head medical knowledge as hydroquinone, however a number of are genuinely efficient, particularly together. Tranexamic acid particularly has been producing robust curiosity for melasma remedy in recent times.
Does azelaic acid assist with effective traces too?
Not likely. Fading darkish spots is what it’s truly good at, and that’s the place the proof is. It’s not going to switch your retinol. That stated, as a result of it calms irritation and fights free radicals, your pores and skin usually seems to be higher and more healthy while you’re utilizing it constantly: much less redness, extra even tone, that type of factor.
The Verdict: Which One Ought to You Use?
In case you have entry to prescription hydroquinone and also you’re utilizing it beneath supervision for a brief, outlined interval, it’s a strong software with many years of proof behind it, notably for cussed epidermal melasma. However in the event you’re searching for one thing you should utilize on delicate pores and skin, preserve long run with out supervision, use safely throughout being pregnant, or entry with no prescription, azelaic acid is a wonderful selection. The 2 don’t have to be in competitors. They tackle comparable pores and skin considerations via totally different mechanisms, and the perfect decide comes right down to particular person wants, pores and skin sort, pigmentation trigger, and entry. No matter you employ, broad-spectrum sunscreen each single morning isn’t non-compulsory. Interval.
