Medicube
Zero Foam Cleanser$14.11COSRX
Advanced Snail Mucin Gel Cleanser (1.69 fl.oz / 50ml)
Snail secretion filtrate is tenth on this gel cleanser's own twenty-entry list, in a 50 ml travel size from COSRX's snail line, for combination or easily reddened skin that wants a thorough wash without the tight feeling afterwards.
No reviews yet50ml
$29.98 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- DryDehydrated
- Helps with
- DehydrationCompromised, over-exfoliated skin
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How it works
The Advanced Snail Mucin Gel Cleanser is a 50ml gel cleanser, used as your first step, morning and evening, on skin wet with lukewarm water. The humectant it is built around is Snail Secretion Filtrate, named tenth on its own ingredient list. The same list carries Arginine, so the humectant is not the only thing on it worth naming. How much of the Snail Secretion Filtrate stays on the skin, and for how long, is decided by the gel cleanser format rather than by the list alone. COSRX sells this Snail Secretion Filtrate gel cleanser in Korea, and this is that version.
Key benefits
- Cleanser, from COSRX's Korean-market lineup, 50 ml
- The barcode and batch code on the box are the Korean-market ones, unaltered
- COSRX verifies units itself, on cosrx.com, against the batch number and expiration date printed on your unit.
Key actives
3Butylene Glycol
a multifunctional glycol that carries moisture and helps preserve the formula
10Snail Secretion Filtrate
a moisture-retentive filtrate that lays down hydration and helps the surface hold onto it
How to use
- Use the Advanced Snail Mucin Gel Cleanser as your first step, morning and evening, on a face wet with lukewarm water.
- A pea-sized amount, worked between wet palms into a thin lather, then massaged over the face for twenty seconds.
- Rinse and go straight to your toner while skin is still damp, then serum and moisturizer in the usual order.
- Twice a day is the ceiling. Do not add a third wash on a bare-skin day; there is nothing left on the face to take off by then.
COSRX Advanced Snail Mucin Gel Cleanser (1.69 fl.oz / 50ml)
Where does this gel cleanser go in my routine?
As your first step, morning and evening, on skin wet with lukewarm water. Nothing goes under it: this gel cleanser is the step everything else in the routine lands on top of. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Snail Secretion Filtrate and not three changes at once.
Does this gel cleanser contain fragrance?
Yes. The ingredient list names Fragrance. It sits on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this gel cleanser is not the one.
What else is on the list besides Snail Secretion Filtrate?
Arginine. The order they are printed in on this gel cleanser's panel is the order on the box, so you can see where Snail Secretion Filtrate sits relative to them. Snail Secretion Filtrate itself is named tenth on it.
Not on the ingredient list below: denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (20): Water, Acrylates Copolymer, Butylene Glycol, Glycerin, Disodium Laureth Sulfosuccinate, Sodium Cocoyl Isethionate, 1,2-Hexanediol, Coco-Glucoside, Lauryl Betaine, Snail Secretion Filtrate, Arginine, Tromethamine, Potassium Cocoyl Glycinate, Fragrance, Carbomer, Sodium Chloride, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Polyacrylate, Disodium EDTA
Ingredient list read from jolse.com on 9 September 2026.
20 of 20 explained
- Water solvent
- Water is the base almost every serum, toner and cream is built on. It dissolves the water-loving ingredients and sets how light the finished texture feels. On an INCI list it is usually first, which only means it is the largest single ingredient by weight.
- Acrylates Copolymer film former
- Acrylates Copolymer is a synthetic polymer that forms a film as the water leaves. It holds a formula in place, controls shine and helps a texture stay put.
- Butylene Glycol humectant
- Butylene Glycol is a small glycol that does two jobs at once: it holds water in the top layer of skin and it dissolves plant extracts and actives that plain water cannot. It also thins a formula, which is why watery Korean essences lean on it.
- Glycerin humectant
- Glycerin is the most used humectant in skincare. It draws water into the outer layer of skin and holds it there, and it is one of the very few ingredients whose hydrating effect is settled science rather than marketing. Higher amounts feel tacky, which is why it is usually blended.
- Disodium Laureth Sulfosuccinate surfactant
- A sulfosuccinate surfactant: milder than a sulfate, with more foam than an amino-acid one. It is often used to soften a sulfate-based cleanser.
- Sodium Cocoyl Isethionate surfactant
- Sodium Cocoyl Isethionate is a coconut-derived surfactant that gives a dense, creamy foam while staying mild. It is the usual choice in syndet cleansing bars.
- 1,2-Hexanediol humectant
- 1,2-Hexanediol is a glycol used for two reasons: it holds water like glycerin, and it makes a formula harder for microbes to live in, so less traditional preservative is needed. Korean formulas use it heavily for that second reason.
- Coco-Glucoside surfactant
- Coco-Glucoside is a mild sugar-derived surfactant used in gentle cleansers, usually with a second surfactant to build foam.
- Lauryl Betaine surfactant
- Lauryl Betaine is a secondary surfactant that boosts foam and thickens a cleanser while reducing how stripping the main surfactant feels.
- Snail Secretion Filtrate humectant
- Snail Secretion Filtrate is the mucin a snail produces, filtered for cosmetic use, and it is the ingredient the Korean snail category is built on. It carries glycoproteins, hyaluronic acid and glycolic acid, and it is used for hydration and a smoother-looking surface.
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
8 more explained
- Potassium Cocoyl Glycinate surfactant
- Potassium Cocoyl Glycinate is a coconut-and-glycine surfactant used in low-pH cleansers. It foams well and rinses without the squeaky tightness a soap leaves.
- Fragrance fragrance
- Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Sodium Chloride thickener
- Sodium Chloride is salt. In a cleanser it thickens the liquid; in a mask or essence it balances the mineral content of the water phase. It has no active role.
- Ethylhexylglycerin preservative booster
- Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- Sodium Polyacrylate thickener
- Sodium Polyacrylate is a polymer that absorbs many times its weight in water. It thickens a formula and holds water in a gel against the skin.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809598453654
- Made in
- Republic of Korea
- Volume
- 50ml
- Category
- Cleanser
- Actives
- Snail Secretion Filtrate
- Ships from
- California or Korea
Orders ship from California or direct from Korea with tracked delivery to your door, and both routes carry the same Korean-market release. Shipping is free on orders of $100 or more. Returns are accepted for 30 days, by mail.
We split shipments free, so one out-of-stock item never holds up the rest of your order.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
We stock the version of a formula that is sold in Korea, not the release a brand prepares for another market under the same name. The barcode in the specification above is the Korean-market one and it is printed on the box you receive.
Every unit keeps its original barcode and batch code intact, so the unit in your hands can be checked against the brand’s own records.
Every order ships from California or direct from Korea, and returns run for 30 days.
Every claim on this page traces to the unit in the box, the barcode, the batch code and the price you can read for yourself.
Inside the formula
Inside the formula
- 3Butylene Glycol
- 10Snail Secretion
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Worth knowing
- Fragrance is on the ingredient list.
- Snail secretion filtrate is animal-derived, so this is not a vegan formula.
Reviews
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COSRX Advanced Snail Mucin Gel Cleanser (1.69 fl.oz / 50ml)
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
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A blunt first take on the Dr. Althea range.
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A first try of the Dr. Althea serum on camera.
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COSRX, Korean-market original
The Original Korean Formula gel cleanser from COSRX, 50ml formulated with Snail Secretion Filtrate and Arginine, shipped from California or direct from Korea.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
COSRX verifies units itself. Find the verification page on cosrx.com and enter the batch number and expiration date printed on your unit. Read them off the package rather than from us, which is the point.
Source: COSRX FAQ
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about skin care, quoted from the medical sources linked beside each.
The hyaluronic acid and peptides in snail mucin may stimulate the production of collagen and elastin.
Hadley King, MDClinical instructor of dermatology, Weill Medical College of Cornell, Women's Health Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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