Image: cosrx.com
COSRX
AC Collection Calming Liquid Mild
A toner built around PHA and Panthenol, for hydration and barrier repair.
Brand price
USD 26.00 · checked 25 Sept 2026 · on the brand's site
From the brand
What the brand says about this product. Our ingredient analysis follows below.
The brand recommends it for
- Sensitive skin
- Acne & blemishes
- Redness & rosacea
- Uneven texture
- Oiliness & shine
How to use
1. Soak the cotton pads and gently sweep over the face avoiding the eye area. 2. Gently pat and absorb the rest of the liquid.
What's inside
Ingredients List
3 trigger at least one check · 15 trigger none
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Key Ingredients
Centella asiatica (Cica)3
Centella asiatica (cica), used to calm irritation.
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Betaine, Butylene Glycol, Gluconolactone, Glycerin, Panthenol, Sodium Hyaluronate
Barrier Repair5
Strengthens and restores the skin's natural barrier.
Allantoin, Betaine, Glycerin, Melaleuca Alternifolia Leaf Oil, Panthenol
Reduces Irritation5
Eases discomfort and supports skin resilience.
Allantoin, Asiatic Acid, Asiaticoside, Madecassic Acid, Panthenol
Redness Reducing4
Soothes visible redness and calms irritation.
Anti-Pollution4
Helps defend against airborne pollutants.
Allantoin, Asiaticoside, Glycerin, Melaleuca Alternifolia Leaf Oil
Concerns
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
May Worsen Eczema1
May worsen itching or irritation for eczema-prone skin.
Ingredients Explained
Click on any ingredient to learn more about it
Camellia Sinensis Leaf Water
Fragrance, Perfuming, Tonic
Camellia Sinensis Leaf Water is an aqueous solution of the odoriferous principles of the leaves of the Tea, Camellia sinensis, Theaceae
Learn more about Camellia Sinensis Leaf Water →Butylene Glycol
Fragrance, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)
Learn more about Butylene Glycol →Dimethyl Sulfone
Solvent, Viscosity Controlling
Dimethyl sulphone
Learn more about Dimethyl Sulfone →Betaine
Hair Conditioning, Humectant, Humectant
Betaine is the zwitterion (inner salt) that conforms to the formula
Learn more about Betaine →1,2-Hexanediol
Skin Conditioning, Solvent
We don't have a description for 1,2-Hexanediol yet.
Learn more about 1,2-Hexanediol →Betaine Salicylate
Antimicrobial, Keratolytic
Betaine Salycilate is the product formed by the reaction of Betaine with Salycilic Acid
Learn more about Betaine Salicylate →Gluconolactone
Chelating, Skin Conditioning
Gluconolactone is a PHA.
Learn more about Gluconolactone →Polyglyceryl-10 Laurate
Skin Conditioning, Emulsifying
Polyglyceryl-10 Laurate isn't fungal acne safe.
Learn more about Polyglyceryl-10 Laurate →Polyglyceryl-10 Myristate
Skin Conditioning
Polyglyceryl-10 Myristate isn't fungal acne safe.
Learn more about Polyglyceryl-10 Myristate →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →
Dupes
- COSRX One Step Moisture Up Pad79% match
- COSRX One Step Green Calming Pad76% match
- COSRX One Step Original Clear Skin Calming Pad72% match
- COSRX One Step Original Clear Pad72% match
- COSRX AC Collection Calming Liquid Intensive71% match
- Numbuzin No.1 Centella Re-Leaf Green Toner Pads69% match