We tested the 5 most popular acne treatments

🏆 #1: Iselie

Iselie was the treatment none of our testers had heard of before this test. By night two, three testers asked if they could keep the bottle after the trial. By week four, every single tester ranked it first.

What sets Iselie apart is that it actually stays on your skin. The Acne Buster Drying Lotion is an overnight spot treatment: you dab it onto a breakout in the evening and leave it on all night. Most products we tested are cleansers or toners that are gone within minutes. Iselie is the only one that targets the breakout itself, for hours. Our testers loved how simple it was: a tiny dab with a cotton swab, let it dry, go to sleep, rinse in the morning.

It combines three proven actives. 1.8% Salicylic Acid is an oil-soluble BHA that unclogs the pore where every breakout begins. Colloidal Sulfur absorbs excess oil and dries out the spot overnight. This is what makes pimples look flatter by morning.

The third is 4% Niacinamide, and this is where Iselie leaves the competition behind. It calms visible redness and helps the red and dark marks a pimple leaves behind fade faster. No other product in our test treated the breakout and the mark after it this well.

Zinc Oxide, Allantoin, and Arginine keep the skin around the spot calm and hydrated. Many drying lotions leave flaky, irritated patches. Iselie did not, and even our testers with sensitive skin had almost no complaints. The active strengths are printed right on the bottle, too. No vague “acne complex”, no secret doses.

The results came fast. After the first night, 78% of our testers said their spot looked visibly smaller and flatter. After two weeks, most active breakouts were under control. After four weeks, post-acne marks looked noticeably lighter.

One bottle lasts approximately one month of nightly use: a full skin renewal cycle in one bottle. That kind of duration is rare in the category — most acne treatments run out before you have completed a single skin cycle.

The brand's own reporting backs it up. 94% of users reported visibly calmer-looking skin, 91% noticed less redness, and 89% felt more confident in their skin. With a 60-day money-back guarantee, there is no risk in trying it.

A small bottle that outperformed routines costing five times as much, with a gentler formula and stronger actives. The surprise of the year.

#2: Norse Organics

Norse Organics is one of the biggest direct-to-consumer skincare brands of the moment, and the Kill Acne & Redness Ritual is their complete answer to acne and redness. It is a full multi-step system of balms and a scrub, and our testers genuinely loved the experience of using it.

The formula leans on botanicals: Marigold (Calendula) to calm breakouts, Thistle Oil to soothe redness, and Sea Buckthorn for a healthy-looking glow. Over four weeks, redness around breakouts clearly calmed down and the skin looked more even.

The problem is speed. Without a BHA, sulfur, or niacinamide, active pimples took closer to a week to settle, where Iselie often flattened them in one or two nights. The multi-step routine also asks for real commitment, and several testers started skipping steps by week three.

Then there is the price. At around $99 for a one-time purchase, it is the most expensive option in our test, and the balms are used up quickly when applied to the whole face twice a day.

For a soothing, natural routine, Norse is a lovely choice. For fast results on active breakouts compared to Iselie's three proven actives, it falls short.

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#3: The Ordinary

The Ordinary needs no introduction. The Niacinamide 10% + Zinc 1% serum is one of the best-selling skincare products in the world, and at around €6 it is by far the most affordable product in our test.

For what it costs, it performs well. Our testers with oily skin saw less shine and slightly smaller-looking pores within two weeks, and the lightweight texture layers easily under moisturiser.

The issue is that it is not a complete acne treatment. There is no salicylic acid and no sulfur, so it does nothing to clear the clogged pore where a breakout begins. Active pimples barely changed over four weeks.

The dose is also a double-edged sword. At 10%, niacinamide is more than most skin needs, and two of our testers developed mild redness and flushing. A few others noticed the serum pilling under makeup.

Good and cheap — a smart budget pick for oily skin. But not nearly as complete as our number one.

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#4: Shield Labs

Shield Labs targets stubborn and hormonal acne with its Shield Face Wash, and backs it with a bold “Clear Skin or Refund” guarantee. For anyone on the fence, that promise is reassuring.

The formula is built around Curoxyl-42, a newer form of benzoyl peroxide, supported by Niacinamide, Ceramides, and Hyaluronic Acid. Testers with many breakouts at once saw clear improvement after three to four weeks.

But it is still a cleanser. It sits on the skin for less than a minute before you rinse it away, so single, deep pimples responded far more slowly than with a leave-on spot treatment. The active strengths are not printed on the tube either.

Several testers reported a tight, dry feeling after washing, and benzoyl peroxide is known to bleach towels and pillowcases — two of our testers ruined a white towel in week one.

At around $54 for a two-month supply, it is not cheap. A solid option with a strong guarantee, but not the fastest route to clear skin.

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#5: CLEARSTEM

CLEARSTEM is a premium, acne-safe brand with a loyal following, and BRIGHTMEUP is their brightening toner for acne-prone skin. It is often recommended for post-acne marks and hormonal breakouts.

The formula is clean and well thought out: 2% BHA, an Azelaic Acid derivative, Niacinamide, and Zinc PCA, with no pore-clogging ingredients or synthetic fragrance. Testers saw a brighter, more even tone after three weeks, and some red marks faded slightly.

On active breakouts, however, the effect was limited. As a toner, it is swept across the whole face rather than concentrated on the spot, so the actives are spread thin exactly where you need them most. New pimples barely responded.

The pump bottle is pleasant to use, but at around $38 for 95ml it empties quickly when used twice a day.

A lovely premium toner for an even complexion. For actually clearing breakouts, it is not the answer.

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