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NOSCA9 Deep Pore Cleansing Foam$14.11COSRX
AC Collection Calming Foam Cleanser (1.69 fl.oz / 50ml)
COSRX AC Collection Calming Foam Cleanser is a 50ml foam cleanser whose ingredient list carries Asiaticoside alongside Asiatic Acid and Madecassic Acid.
No reviews yet$14.99
50ml
$29.98 per 100 ml
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Congested skinUneven textureDehydrated skin
- Helps with
- Shoppers looking for Asiaticoside in a foam cleanserRoutines that want Asiaticoside and Asiatic Acid in one stepFilling the foam cleanser step with a Korean-market formula
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$14.11
$17.64
$17.64
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
Key benefits
- Asiaticoside, the active this foam cleanser is built around
- Asiatic Acid and Madecassic Acid on the same list, actives
- Salicylic Acid on the same list, an exfoliant
- PEG-32 on the same list, a humectant
- Myristic Acid and Palmitic Acid further down the same list
- Lauric Acid and Arachidic Acid further down the same list
Key actives
5PEG-32humectant
PEG-32 is a longer polyethylene glycol. It is a humectant that also adds a little body to a watery formula. It is named fifth on this foam cleanser's list, alongside Asiaticoside.
14Salicylic Acidexfoliant
It loosens the dead cells that block pores and is used for the look of congested, oily skin. It is named fourteenth on this foam cleanser's list, alongside Asiaticoside.
22Asiaticosideactive
Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised. On this foam cleanser's own ingredient list it is named twenty-second.
23Asiatic Acidactive
Asiatic Acid is the third of centella's four triterpenes and the aglycone form, meaning it has no attached sugar. It is oil soluble, so it turns up in cica creams and balms more than in watery layers. The panel names it twenty-third on this foam cleanser's list, beside Asiaticoside.
24Madecassic Acidactive
Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula. The panel names it twenty-fourth on this foam cleanser's list, beside Asiaticoside.
Inside the formula
Inside the formula
24
Ingredients declared
No fragrance
on the list
5PEG-3214Salicylic Acid22Asiaticoside24Madecassic Acid
- 5PEG-32
- 14Salicylic Acid
- 22Asiaticoside
- 24Madecassic Acid
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
COSRX AC Collection Calming Foam Cleanser (1.69 fl.oz / 50ml)
Where does this foam cleanser go in my routine?
As your first step, morning and evening, on a face already wet with lukewarm water. Nothing goes under it: this foam 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 Asiaticoside and not three changes at once.
Does this foam cleanser contain fragrance?
Yes. The ingredient list names Limonene and Linalool. They sit 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 foam cleanser is not the one.
What else is on the list besides Asiaticoside?
Asiatic Acid, Madecassic Acid and Salicylic Acid. The order they are printed in on this foam cleanser's panel is the order on the box, so you can see where Asiaticoside sits relative to them. Further down the same panel: PEG-32, Myristic Acid and Palmitic Acid.
Contains essential oils
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (24): Water, Glycerin, Stearic Acid, Myristic Acid, PEG-32, Potassium Hydroxide, Palmitic Acid, Lauric Acid, Glyceryl Stearate, PEG-100 Stearate, Lauramide DEA, Cocamidopropyl Betaine, Potassium Cocoate, Salicylic Acid, Sodium Chloride, Arachidic Acid, Lavandula Hybrida Oil, Linalool, Disodium EDTA, Oleic Acid, Limonene, Asiaticoside, Asiatic Acid, Madecassic Acid
Ingredient list read from inkeedecoder.com on 26 August 2026.
24 of 24 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.
- 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.
- Stearic Acid fatty acid
- Stearic Acid is a saturated fatty acid from plant fats, and one of the three lipid classes skin's own barrier is built from. In a formula it thickens, stabilises the emulsion and can be turned into a soap-style cleanser by adding a base.
- Myristic Acid fatty acid
- Myristic Acid is a saturated fatty acid used to thicken and, with a base added, to build the foam in a soap-style cleanser.
- PEG-32 humectant
- PEG-32 is a longer polyethylene glycol. It is a humectant that also adds a little body to a watery formula.
- Potassium Hydroxide pH adjuster
- Potassium Hydroxide is a strong base used in traces to raise a formula to its target pH. In a soap-style cleanser it also converts fatty acids into the surfactant that does the cleansing.
- Palmitic Acid fatty acid
- Palmitic Acid is a saturated fatty acid present in skin's own lipids. It thickens a formula, stabilises the emulsion and softens skin.
- Lauric Acid fatty acid
- Lauric Acid is the coconut fatty acid that gives soap-style cleansers their dense foam. It is not well suited to blemish-prone skin at high levels.
- Glyceryl Stearate emulsifier
- Glyceryl Stearate is glycerin joined to stearic acid, and one of the most used emulsifiers in skincare. It holds oil and water together and thickens the result, and it softens skin at the same time.
- PEG-100 Stearate emulsifier
- PEG-100 Stearate is a water-loving emulsifier almost always paired with glyceryl stearate. Together they form the standard cream base of the last fifty years.
- Lauramide DEA surfactant
- Lauramide DEA is a coconut-derived foam booster. It thickens a cleanser and makes the lather denser.
- Cocamidopropyl Betaine surfactant
- Cocamidopropyl Betaine is a coconut-derived secondary surfactant. Its job is to boost foam and soften the harshness of the main cleanser rather than to clean on its own.
12 more explained
- Potassium Cocoate surfactant
- Potassium Cocoate is coconut oil turned into soap. It cleanses strongly and sits at a high pH, which is what gives a traditional soap-style cleanser its squeaky finish.
- Salicylic Acid exfoliant
- Salicylic Acid is a BHA, and the only common exfoliant that is oil soluble, so it can work inside a pore rather than only on the surface. It loosens the dead cells that block pores and is used for the look of congested, oily skin.
- 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.
- Arachidic Acid fatty acid
- Arachidic Acid is a long-chain saturated fatty acid used to thicken and stabilise a formula.
- Lavandula Hybrida Oil fragrance
- Lavandin oil, from the hybrid lavender grown for perfumery. It is sharper and more camphorous than true lavender.
- Linalool fragrance component
- Linalool is a floral aromatic found in lavender, bergamot and coriander. It is one of the 26 fragrance components EU labelling requires to be declared by name.
- 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.
- Oleic Acid fatty acid
- Oleic Acid is the main fatty acid in olive and many nut oils. It is a rich emollient that softens skin and can feel heavy on skin prone to congestion.
- Limonene fragrance component
- Limonene is the citrus-peel aromatic. It appears here because EU labelling requires 26 fragrance components to be named individually rather than hidden inside "fragrance", and it is one of them.
- Asiaticoside active
- Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised.
- Asiatic Acid active
- Asiatic Acid is the third of centella's four triterpenes and the aglycone form, meaning it has no attached sugar. It is oil soluble, so it turns up in cica creams and balms more than in watery layers.
- Madecassic Acid active
- Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809598453692
- Made in
- Republic of Korea
- Volume
- 50ml
- Category
- Cleanser
- Actives
- Centella Asiatica, Salicylic Acid
- 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.
How it works
The AC Collection Calming Foam Cleanser is a 50ml foam cleanser, used as your first step, morning and evening, on a face already wet with lukewarm water. The active it is built around is Asiaticoside, named twenty-second on its own ingredient list. The same list carries Asiatic Acid, Madecassic Acid and Salicylic Acid, so the active is not the only thing on it worth naming. How much of the Asiaticoside stays on the skin, and for how long, is decided by the foam cleanser format rather than by the list alone. COSRX sells this Asiaticoside foam cleanser in Korea, and this is that version.
How to use
- Use the AC Collection Calming Foam Cleanser as your first step, morning and evening, on a face already wet with lukewarm water.
- A short pump or a pea of product is enough. Work it into a lather in wet hands for about twenty seconds before it touches the face.
- Rinse with lukewarm water and go straight on to your toner while skin is still damp, because a humectant layer has more to hold on to on a damp face.
- Twice a day is the ceiling. Do not follow it with a second cleanse in the morning, when there is no sunscreen or makeup left on the face to remove.
Worth knowing
- Patch test this foam cleanser on a small area and wait a day before using it more widely, especially with Asiaticoside on the list.
- This list names Limonene and Linalool, so skip it if fragrance components are something you avoid.
- Salicylic Acid on this list makes this foam cleanser an exfoliating step, so do not stack it with another one on the same night.
Reviews
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COSRX AC Collection Calming Foam Cleanser (1.69 fl.oz / 50ml)
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COSRX, Korean-market original
The Original Korean Formula foam cleanser from COSRX, 50ml formulated with Asiaticoside and Asiatic Acid, 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.
Centella can make your skin appear more hydrated, plumper and healthier.
Samantha Stein, PA-CDermatology physician assistant, Cleveland Clinic 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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