It combines a declared 1.8 percent salicylic acid with a classic potassium-soap foam and centella, giving oily, breakout-prone skin a thick, satisfying lather that also delivers a meaningful dose of BHA.
A thick, satisfying acne foam that combines a declared 1.8 percent salicylic acid with a potassium-soap lather and centella, leaving oily, breakout-prone skin thoroughly clean. The soap base, exfoliating acid and fragrance make it too drying for sensitive or dry skin, and like any rinse-off BHA, it works best as a supporting step rather than the main acne treatment.
Product-level reviews for this foam are limited, so the assessment relies on its declared 1.8 percent salicylic acid and on research into BHA and soap-based cleansers. The finished formula's pH is not published, which matters for both salicylic acid efficacy and barrier impact.
The case for it
Cautions: fragrance; fungal-acne triggers.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R2r decided 408 of them. As of September 25, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
Cautions: fungal-acne triggers.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R2r decided 408 of them. As of September 25, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
Cautions: fungal-acne triggers.
What would change this: The same active in a leave-on form would be judged on its evidence rather than its contact time.
Same rule for everyone. “Supporting role” is the verdict on 8,197 of 45,024 concern verdicts across the catalog; rule R6 decided 2,017 of them. As of September 25, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
Does the jobDoes what a cleanser is for: puts something back, surfactant mildness. Not measured from the label: pH match to skin.
A verdict is DermApproved’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.09-r228 · how we decide
On the label, the Dermatory Pro Trouble Acne Cleansing Foam emphasises soothing: centella asiatica, plant-derived surfactants, 25 percent moisturizing ingredients and skin irritation testing. Look at the ingredient list, though, and the first ingredients after water are myristic acid, glycerin, methylpropanediol and potassium hydroxide. That combination, together with lauric, palmitic and stearic acids further down, means the foam is built on potassium soap. Add 1.8 percent salicylic acid and fragrance, and you have a cleanser that is effective for oily, acne-prone skin but decidedly not gentle, whatever the packaging suggests.
Start with the good news. The declared 18,000ppm salicylic acid, or 1.8 percent, is a meaningful dose. Salicylic acid is oil-soluble, allowing it to penetrate sebum-filled pores, where it helps loosen the dead cells and oil that form blackheads and small breakouts. In a rinse-off cleanser, contact time is brief, so the benefit is smaller than with a leave-on BHA, but leaving the lather on for thirty to sixty seconds before rinsing gives the acid a better chance to work. Over several weeks of daily use, many people with oily, congested skin notice fewer clogged pores and small breakouts.
The soap base provides the rest of the experience. Potassium soaps produce a thick, bouncy, cushiony foam that lifts oil and sunscreen efficiently and leaves the skin feeling very clean. Coco-glucoside, a mild plant-derived surfactant, softens the lather, and glycerin, third in the list, cushions the soap and reduces the tight feeling afterward. For oily skin, the result is a satisfying, deep-clean sensation that lasts.
The complication is pH. Soap-based cleansers are alkaline, and salicylic acid itself is most effective at a lower pH. The formula's final pH is not published, but combining an acid with a soap base inevitably involves compromise, and alkaline cleansing is associated with more barrier disruption and tightness than low-pH syndet cleansers. For resilient, oily skin, that may not matter much. For dry, sensitive or eczema-prone skin, it can mean tightness, redness or stinging, particularly around the nose and mouth.
The soothing ingredients are a welcome effort. Centella asiatica extract appears right after the salicylic acid, and fig, toothache plant, elm root and amaranth extracts, hydrogenated lecithin and a touch of ceramide NP are included to calm and support the skin. In a rinse-off product, however, their effect is limited; they make the cleanse feel nicer but cannot fully offset the drying potential of soap and BHA combined.
Fragrance is added at the end of the list. It is noticeable during use and fades after rinsing, but it is another consideration for sensitive skin. The fatty acids myristic and lauric acid are sometimes flagged on comedogenicity lists; in a rinse-off soap they are far less concerning than in a leave-on product.
How the cleanser fits into an acne routine matters. Because it already contains BHA, stacking it with other strong exfoliants or retinoids can lead to over-drying. A sensible approach is to use it once daily, perhaps in the morning, with a leave-on treatment such as adapalene, benzoyl peroxide or azelaic acid at night, and to follow every wash with a hydrating, fragrance-free moisturizer. If the skin feels tight or stings, reducing frequency or switching to a gentler cleanser on some days is wise.
There is also an argument for keeping expectations modest. Cleansers, even those with good actives, are supporting players in acne care. Moderate or inflammatory acne generally needs leave-on treatments and sometimes prescription therapy, and cysts or scarring warrant a dermatologist. This foam can help keep oily, congested skin clearer, but it is not a cure.
Technique makes a surprising difference with a cleanser like this. Using lukewarm rather than hot water reduces how much the soap strips from the skin. Applying the foam only to the oily, congested zones, typically the forehead, nose and chin, and letting it merely pass over the drier cheeks during rinsing, can make the cleanser workable for combination skin that would otherwise find it too harsh. Patting the face dry rather than rubbing, and applying moisturizer within a minute or two, helps the barrier recover.
Season matters too. In humid summer months, when oil production peaks, a twice-daily BHA foam may feel perfectly comfortable. In winter, when indoor heating dries the air, the same routine can tip skin into flaking and sensitivity. Dropping to once a day in colder months, or alternating with a gentle, non-foaming cleanser, is an easy adjustment that keeps the benefits without the drawbacks.
Pregnant users should note that guidance on salicylic acid in pregnancy varies; low concentrations in rinse-off cleansers are often considered acceptable, but checking with a clinician is sensible.
The cleanser has been sold since around 2020 and remains available through Korean retailers, although some international stores have delisted it. Product-level review data is limited, but the feedback available praises the rich foam and the reduction in small breakouts, while noting dryness and the fragrance.
Value is good. At about fourteen dollars for 150ml regular price, and only a pea-sized amount needed, a tube lasts two to three months.
For oily, combination, breakout-prone skin that enjoys a rich lather and tolerates soap-based cleansers, this is an effective, affordable option. For dry, sensitive, eczema-prone or rosacea-prone skin, a low-pH, fragrance-free BHA cleanser or a simple gentle cleanser paired with a leave-on BHA would be kinder.
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Salicylic Acid (1.8%) (1.8%) | The declared 18,000ppm salicylic acid is the cleanser's acne active, an oil-soluble BHA that helps loosen sebum and dead cells in pores during the lather's short contact time. | Regulator-approved for Acne · emerging certainty |
| Myristic Acid & Potassium Hydroxide (soap base) | These fatty acids react with potassium hydroxide to form the potassium soaps that create the dense, cushiony foam and give the cleanser its strong oil-removing power. | Not yet assessed |
| Coco-Glucoside | A mild, plant-derived non-ionic surfactant that softens the soap base and contributes to the rich lather. | Not yet assessed |
| Centella Asiatica Extract | Added right after the salicylic acid to soothe skin during an exfoliating cleanse, though rinse-off contact limits its effect. | Not yet assessed |
| Glycerin | Third in the list, glycerin cushions the soap base and helps the skin feel less tight after rinsing. | Not yet assessed |
Ingredient standings describe the active at treatment-level doses and vehicles; this product's own condition grades weigh its actual formula.
Water, Myristic Acid, Glycerin, Methylpropanediol, Potassium Hydroxide, Coco-Glucoside, Lauric Acid, Palmitic Acid, Stearic Acid, Salicylic Acid (18,000ppm), Centella Asiatica Extract, Glyceryl Stearate, Ficus Carica (Fig) Fruit Extract, Acmella Oleracea Extract, Ulmus Davidiana Root Extract, Amaranthus Caudatus Seed Extract, Hydrogenated Lecithin, Sorbitan Olivate, Butylene Glycol, Disodium EDTA, Ceramide NP, 1,2-Hexanediol, Fragrance
cleanser
AM & PM
Use as the main cleanse on oily, breakout-prone skin, leaving the lather on for 30 to 60 seconds before rinsing so the salicylic acid has time to work. Follow with a hydrating, fragrance-free moisturizer, and avoid pairing with other strong exfoliants in the same routine.
Skin feels thoroughly clean and less oily immediately. With daily use, fewer clogged pores and small breakouts may be noticed over four to six weeks.
Salicylic acid is a beta hydroxy acid with lipophilic properties that allow it to penetrate sebum within follicles, where it disrupts the cohesion of corneocytes and reduces comedone formation. It also has mild anti-inflammatory effects. In the United States, salicylic acid at 0.5 to 2 percent is recognised in the acne monograph, and cleansers are a common delivery format. Rinse-off products provide shorter contact than leave-on formulations, which generally limits their efficacy, though studies of salicylic acid cleansers have shown reductions in acne lesions compared with vehicle.
Soap-based cleansers formed from fatty acids and potassium hydroxide are alkaline. Research on skin surface pH has linked alkaline cleansing to temporary increases in pH, reduced barrier lipids and increased transepidermal water loss, with greater effects in sensitive or eczema-prone skin. Syndet cleansers with a pH closer to the skin's natural acidity tend to be less disruptive. Salicylic acid's activity also depends on pH, with the free acid form being more available at lower pH.
Centella asiatica contains triterpenes with anti-inflammatory and wound-healing activity, though evidence for benefits from rinse-off exposure is limited. Glycerin reduces the drying effect of surfactants by maintaining stratum corneum hydration. Fragrance is a leading cause of cosmetic contact allergy.
Clinical acne management typically combines cleansing with leave-on treatments such as retinoids, benzoyl peroxide or azelaic acid, and supportive moisturizers to maintain barrier function.
Salicylic acid cleansers are commonly recommended by dermatologists for oily, comedonal acne, often alongside leave-on treatments. Clinicians would appreciate the declared 1.8 percent dose but would caution that a soap-based, fragranced formula may be too drying for patients with sensitive skin or those using retinoids or benzoyl peroxide. Standard advice includes using a gentle, fragrance-free moisturizer after cleansing, avoiding over-washing, and adjusting frequency if irritation develops. For moderate to severe acne, clinicians rely on leave-on therapies and prescription treatments, with cleansers playing a supportive role.
Wet the face, then squeeze a pea-sized amount into the palm and work it into a thick foam with a little water. Massage over the face, focusing on oily and congested areas, and leave the lather on for 30 to 60 seconds before rinsing with lukewarm water. Use once daily to start, increasing to twice if skin tolerates it. Follow with a fragrance-free moisturizer. Reduce frequency if skin feels tight or irritated, and avoid layering other strong exfoliants in the same routine.
At about fourteen dollars for 150ml regular price, the foam offers good value for a cleanser with a declared 1.8 percent salicylic acid. A tube lasts two to three months with a pea-sized amount per wash. The soothing botanicals are a pleasant bonus, though the soap base limits the audience. Availability is patchier outside Korea than it once was. It is sold in a single 150ml size.
Oily and combination skin prone to blackheads and small breakouts that enjoys a rich, deep-cleaning lather and tolerates soap-based cleansers well, particularly those looking for an affordable daily BHA cleanse.
Dry, sensitive, eczema-prone or rosacea-prone skin should choose a low-pH, fragrance-free cleanser instead. People already using strong retinoids or multiple exfoliants may find it over-drying.
Ready to try Dermatory Pro Trouble Acne Cleansing Foam?
Buy at Amazon ♥A thick, cream-type paste that whips into a dense, cushiony, bouncy foam with a little water.
A fresh added fragrance noticeable during use.
A 150ml squeeze tube with a flip cap.
The foam feels luxurious and cleans oil thoroughly. Oily skin usually enjoys the fresh after-feel; drier or sensitive skin may feel tight or slightly stingy, especially around the nose and mouth.
About two to three months with a pea-sized amount once or twice daily.
spring summer
Dermatory built its Pro Trouble line for acne-prone skin, and this foam became its anchor cleanser, pairing salicylic acid with centella and plant extracts for a treatment-style daily wash.
Dermatory is a Korean dermo-cosmetic brand from the CLIO group. Its Pro Trouble line targets acne-prone skin; this foam, sold since around 2020, declares 1.8 percent salicylic acid, though no product-specific clinical testing is published.
A salicylic acid cleanser works as well as a leave-on BHA.
Rinse-off contact is short, so much of the acid washes away. Leaving the lather on for up to a minute helps, but leave-on products deliver more consistent results.
Tight skin after washing means pores are clean.
Tightness usually signals that the cleanser has removed some of the skin's own lipids. Pore cleaning is about sebum and cell buildup, not squeaky feelings.
The label declares 18,000ppm, which is 1.8 percent salicylic acid, alongside centella extract and plant-derived surfactants.
It can be drying for sensitive or dry skin because of the soap base, salicylic acid and fragrance. It suits oily, resilient skin best.
Lather it on damp skin and leave it for 30 to 60 seconds before rinsing, giving the salicylic acid time to reach pores. Follow with a hydrating moisturizer.
Combining a BHA cleanser with retinoids can increase dryness. Many people use the cleanser in the morning and the retinoid at night, or reduce cleanser frequency.
Low-concentration salicylic acid in rinse-off cleansers is often considered acceptable, but guidance varies. Consult a clinician before using BHA products while pregnant.
Yes, fragrance is listed at the end of the formula. Fragrance-sensitive skin may prefer an unscented BHA cleanser.
Recurring themes our editors read across retailer reviews of this product — summaries in our words, not quotations, and not a substitute for your own patch test.
Rich, dense foam
Helps reduce small breakouts
Leaves oily skin feeling very clean
Can feel tight or drying
Noticeable fragrance