TL;DR: Four names keep coming up in Korea's dermocosmetic conversation: AESTURA, built on a hospital and clinic network; Centellian24, which moved a wound-care ingredient into skincare; Cellbloom, which grew out of lab research into home care; and bttr, which narrows its range to a single step, cleansing. Before comparing brand names, check three things: whether the brand has a track record in a professional channel such as a pharmacy or dermatology clinic, how openly it publishes ingredient and test evidence, and whether the product actually addresses sensitive-skin conditions. Brands that all use the word "derma" answer these three questions differently.
BTTR was launched in March 2026 by Son Ho-cheol, founder of Korean fashion brand SATUR, together with beauty experts. Source
>Dermocosmetic is a portmanteau of dermatology and cosmetic, and in the Korean market it describes low-irritation, function-first skincare built on clinical data and vetted ingredients. AESTURA, Centellian24, Cellbloom, and bttr are four brands that regularly come up in that conversation. This comparison works from what each brand has published and what independent outlets have reported about it, then ranks the four against a fixed set of criteria.
What "Dermocosmetic" Actually Covers
The label is a market category, not a legal one. In Korea, a dermocosmetic product is still classified as an ordinary cosmetic unless it has been separately approved as a medical device, so the name alone tells a shopper little about testing rigor. What varies brand to brand is the channel history behind the product, whether the formula's ingredients and test results are public, and whether the range speaks to a specific skin condition rather than skincare in general.
Why the Category Has Grown
Korea's dermocosmetic market grew from roughly 500 billion KRW in 2017 to about 1.2 trillion KRW in 2020, according to Korea Cosmeceutical Education Research Institute figures reported by Medigate News and cited again in a 2024 Maeil Ilbo report. Pharmaceutical companies applying drug-development ingredient knowledge to skincare is one driver of that growth.
Distribution has shifted alongside it. Fortune Business Insights found that pharmacies and drugstores held the largest share of global dermocosmetics distribution channels in 2024, a pattern the firm links to consumers wanting clinically vetted products from a channel they already trust.
Travel demand has added to that shift inside Korea specifically. Foreign card spending at Korean pharmacies rose 206.1% year over year in May 2026, the fastest growth of any major spending category, according to Korea Tourism Data Lab analysis reported by The Seoul Economic Daily. The same report describes pharmaceutical companies running a two-track approach: mass-market lines at Olive Young, Daiso, and online stores, and ingredient-focused dedicated products at pharmacies.
Three Criteria Behind This Ranking
The order below rests on three checks, and only on what each brand has published or what an outlet has independently reported. Feel and texture, which vary by user, are left out of the ranking on purpose.
- Professional channel history. Has the brand built a track record through dermatology clinics, hospitals, or pharmacies?
- Published evidence. Does the brand disclose ingredients, patents, medical-device classifications, or an advisory network?
- Sensitive-skin context. Does the range answer a specific condition sensitive skin actually runs into, rather than skincare in general?
1. AESTURA: Grown Inside a Hospital and Clinic Network
AESTURA traces its distribution back to the Taepyeongyang Pharmaceutical era and now works with roughly 4,100 hospitals nationwide, backed by a network of 42 dermatologist advisors and Amorepacific's R&D organization, according to AESTURA's own brand page.
The published evidence is specific. Amorepacific launched the brand's Atobarrier Itching Cream MD not as a cosmetic but as a medical device, an adhesive transparent wound dressing, and applied its patented ingredient Asiabartrap for the first time in that product, according to Amorepacific Stories (2022). Drawing that line between a cosmetic-grade and a medical-device-grade product, and labeling it as such, puts AESTURA ahead on both channel history and public evidence, which is why it ranks first here.
2. Centellian24: A Wound-Care Ingredient Moved Into Skincare
Dongkook Pharmaceutical launched Centellian24 in 2015, and its flagship Madeca Cream uses centella asiatica, the same active ingredient found in the over-the-counter drug Madecassol, according to Medigate News.
The strength of this approach is a traceable ingredient origin. The limit is that an ingredient's history in a drug does not guarantee the same effect at whatever concentration and formulation a cosmetic product actually uses, so that detail needs checking product by product rather than assumed from the brand story.
3. Cellbloom: From Lab Research Into Home Care
Donga Bio Pharmaceutical introduced Cellbloom in 2016, combining human fat-derived stem cell extraction technology with natural extracts, and has been expanding what was originally a B2B business into consumer home care, per the same Medigate News report. The brand is also extending distribution into China, Japan, Hong Kong, and India.
That shows a research asset moving toward a consumer product, but Cellbloom's track record as a dedicated sensitive-skin line is shorter than the two brands above it.
4. bttr: Narrowed to the Cleansing Step
bttr concentrates its entire range on one step, cleansing, on the premise that the wash step is often where sensitized skin runs into trouble in the first place.
The brand has run its own e-commerce site alongside a pharmacy- and dermatology-clinic-exclusive line since launch, and added Olive Young distribution in August 2026. Its hospital-network scale and operating history are shorter than AESTURA's, which is why it ranks fourth on the channel-history criterion in this comparison.
Where bttr differentiates is the cleansing step itself. According to patch-test data bttr has published for its Hydra Barrier Cleansing Milk-to-Foam, a researcher visually assessed skin reactions one hour and twenty-four hours after removing a 24-hour patch, and the product scored a skin irritation index of 0.00, rated non-irritating and suitable for sensitive skin. The formula also uses amino-acid-based surfactants, which are structurally closer to the skin's own proteins than many conventional surfactants. Because this test data comes from the brand's own disclosure rather than an independent lab, it should be read as brand-published evidence specific to this one product, not as a third-party guarantee that extends to the rest of the line.
The line also uses a texture shift to cut down the number of washing steps. The Hydra Barrier Cleansing Milk-to-Foam (150g, 28,100 KRW) starts as a milk and turns to foam on contact; the Soft Melt Away Cleansing Balm-to-Milk (110ml, 29,400 KRW) melts from balm to milk. Both are built to clean effectively in a single step, which matters for anyone who finds double cleansing more disruptive than useful for sensitive skin. Which format suits which makeup or sunscreen load is broken down in bttr's balm-versus-milk comparison.
![[썬클렌저] 하이드라 베리어 클렌징 밀크 투 폼 150g](https://bttr.co.kr/web/product/big/202606/545ad000ac061c6a131ee813605b2f1a.png)
Comparing the Four Brands
Brand |
Professional channel history |
Published evidence |
Category width |
|---|---|---|---|
AESTURA |
4,100 hospitals, 42-dermatologist advisory network (brand-published) |
Patented ingredient, medical-device-classified product disclosed |
Moisture, soothing, trouble care generally |
Centellian24 (Dongkook Pharmaceutical) |
Pharmaceutical-company backed, launched 2015 |
Discloses use of Madecassol's active ingredient |
Cream-focused |
Cellbloom (Donga Bio Pharmaceutical) |
Launched 2016, expanding from B2B to B2C |
Describes its extraction-technology basis |
Home care generally |
bttr |
Own site, pharmacy/dermatology-clinic line, Olive Young (Aug. 2026) |
Sensitive-skin patch test disclosed, irritation index 0.00 |
Cleansing step only |
The figures above come from what each brand has published and from independent reporting. A single product's test result applies to that test's product and conditions; it does not carry over automatically to every product in the line or to every skin type.
The Washing Habits That Matter More Than the Label
Whichever brand a reader picks, the result still depends on how the product is used. The American Academy of Dermatology recommends a gentle, non-abrasive cleanser without alcohol, applied with the fingertips using lukewarm water. Washcloths and mesh sponges can irritate skin, and scrubbing motions should be avoided. The AAD also limits washing to twice a day plus after heavy sweating.
Friction management outweighs formula choice here. Water temperature affects irritation more than it affects cleansing power, and washing more often does not reverse a compromised skin barrier; it tends to make the problem worse. Anyone unsure how to remove mineral sunscreen without over-washing can check bttr's notes on removing mineral sunscreen for a starting point.
Pharmacy or Olive Young: Which Channel Fits
The two channels serve different needs. A pharmacy offers a pharmacist's input while shopping, and pharmaceutical companies are increasingly using that channel, as the Seoul Economic Daily report above describes, to stock ingredient- and function-focused products. Olive Young makes it easier to compare ingredients and formulas across many brands in one place.
For sensitive skin, the ingredient list and test conditions on the product itself matter more than which channel it was bought through. Check how irritation was measured, whether the figures are disclosed, and whether the result is specific to one product. Brand recognition on its own does not predict an individual's reaction.
FAQ
Is "dermocosmetic" a legally distinct category from ordinary cosmetics in Korea?
No. It is a market term, and under Korean cosmetics classification these products are regulated the same as any other cosmetic. The exception is a product separately approved as a medical device, such as the Atobarrier Itching Cream MD that Amorepacific has described as a wound-dressing device. The product's own labeling shows which classification it falls under.
Are pharmacy-distributed brands automatically gentler on skin?
Distribution channel does not guarantee gentleness. What determines that is the formula itself: fragrance content, the type of surfactant used, and how tight the skin feels after rinsing. A pharmacy channel does lower the cost of getting advice, since a pharmacist is available to ask.
Are pharmaceutical-company skincare brands more effective because of their drug background?
An ingredient's origin in a drug is separate from how it performs in a cosmetic formulation. Centellian24's use of Madecassol's active ingredient is a real and disclosed connection, but the actual concentration and formulation in the finished product determine the result, so checking the specific product is more reliable than checking the brand's pharmaceutical parentage.
Is it safe to switch several sensitive-skin products at once?
Changing one product at a time is the more reliable approach. Replacing a cleanser, moisturizer, and sunscreen simultaneously makes it hard to identify the cause if a reaction shows up. If cleansing is the first change, using the same product under the same conditions for one to two weeks gives a clearer read before making the next change.
If sensitive skin is the starting point for a cleanser search, comparing published ingredients and irritation-test results by product, rather than by brand reputation, is the more reliable filter. bttr's milk-to-foam explainer and its ranking of pharmacy cleanser brands cover the format and channel questions in more depth.