COSRX The Hyaluronic Acid 3 Serum 20ml
Description
Cushioned rather than coated.
Dense, cushioned lather. The real soap kind.
What this serum does
A 20 ml serum, formulated to hold water in the surface and soften the surface.
A soap-based foam, by formulation
The cleansing system here is saponified: Stearic Acid, neutralised with an alkali. That is what produces dense, cushioned lather rather than the thin foam a detergent system gives.
Worth knowing if you deliberately avoid soap-based cleansers.
Key ingredients
| Ingredient | What it is, and what it is used for |
|---|---|
| Ceramide NP | Ceramide 3. A material skin already contains, so it reads as its own. |
| Cholesterol | Sterol. Listed as emulsion stabiliser, skin-conditioning agent, viscosity increasing agent (non-aqueous). |
| Caprylic/Capric Triglyceride | Medium-chain triglyceride from coconut. Used to soften by filling the gaps between surface cells. |
| Phytosphingosine | Sphingoid base occurring in stratum corneum lipids. Listed as hair-conditioning agent, skin-conditioning agent. |
| Butylene Glycol | Diol. Used to pull in water and hold it; dissolves the rest so the formula stays one liquid. |
| Propanediol | Plant-derived diol. Dissolves the rest so the formula stays one liquid; used to pull in water and hold it. |
| Glycerin | Polyol. A material skin already contains, so it reads as its own; used to pull in water and hold it. |
| Pentylene Glycol | Diol. Dissolves the rest so the formula stays one liquid; used to pull in water and hold it. |
| Betaine | Amino acid derivative from sugar beet. Used to pull in water and hold it. |
| Sodium PCA | Sodium salt of pyrrolidone carboxylic acid, a component of skin's natural moisturising factor. Listed as hair-conditioning agent, humectant, skin humectant. |
| Sodium Lactate | Lactic acid salt, a component of natural moisturising factor. Listed as buffering agent, keratolytic, humectant. |
| PCA | Pyrrolidone carboxylic acid, a component of skin's natural moisturising factor. Listed as skin humectant. |
How the formula works together
Two groups of ingredients are doing the work here. Humectants — Butylene Glycol, Propanediol and Glycerin among others — draw water into the surface. Emollients and lipids — Ceramide NP, Caprylic/Capric Triglyceride and Phytosphingosine — sit on top and slow how fast that water leaves.
Humectants and emollients and lipids are the pairing that matters here: water pulled in by one, held there by the other. That is the difference between skin that feels comfortable an hour after application and skin that feels comfortable at bedtime.
Who it is for
Worth checking before you buy: contains silicones; soap-based (saponified) cleansing system.
How to use it
- After cleansing, during the serum phase, apply a few drops to the skin.
- Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges.
- Can be used morning and/or evening.
- Recharges the skin with hydration alleviating dryness and restoring the skin's moisture balance
Details
| Size | 20 ml |
| Ingredients | 42, published in full below |
Full ingredient list
Water, Butylene Glycol, Propanediol, Glycerin, Sodium Hyaluronate(3%), Pentylene Glycol, 1,2-Hexanediol, Diethoxyethyl Succinate, Sodium Polyacryloyldimethyl Taurate, Betaine, Xanthan Gum, Dimethicone, Sodium PCA, Sodium Lactate, PCA, Glyceryl Acrylate/Acrylic Acid Copolymer, Hydrogenated Lecithin, Ethylhexylglycerin, Serine, Alanine, Glycine, Sodium Phytate, Sorbitan Isostearate, PVM/MA Copolymer, Glutamic Acid, Citric Acid, Lysine HCl, Threonine, Arginine, Sodium Methyl Stearoyl Taurate, Proline, Ceramide NP, Cholesterol, Caprylic/Capric Triglyceride, Phytosphingosine, Stearic Acid, Oleic Acid, Alcohol, Tocopherol, Lactic Acid, Caprylyl Glycol, Caprylhydroxamic Acid
In label order, unedited.
Shipping
Ships from Korea.
Product details
Shipping & returns
Delivery estimates, customs duties and return eligibility are explained in our Shipping & returns policy