No.4 SOS Icy Soothing Sheet Mask 10P

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 (36): Water, Methylpropanediol, Dipropylene Glycol, 1,2-Hexanediol, Hydroxyacetophenone, Panthenol, Butylene Glycol, Glycerin, Adenosine, Laminaria Japonica Extract, Disodium Edta, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Eclipta Prostrata Leaf Extract, Methyl Diisopropyl Propionamide, Carbomer, Octyldodeceth-16, Xanthan Gum, Tromethamine, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Fructooligosaccharides, Monarda Didyma Leaf Extract, Centella Asiatica Extract, Beta-Glucan, Hydrogenated Lecithin, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Camellia Sinensis Leaf Extract, Ulmus Davidiana Root Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Aloe Barbadensis Leaf Extract, Viola Mandshurica Flower Extract, Dioscorea Japonica Root Extract, Hydrolyzed Hyaluronic Acid, Rosmarinus Officinalis (Rosemary) Leaf Extract, Chamomilla Recutita (Matricaria) Flower Extract, Cetraria Islandica Extract

Ingredient list read from jolse.com on 10 September 2026.

35 of 36 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.

Methylpropanediol humectant

Methylpropanediol is a small glycol used to hydrate and to help water-soluble actives penetrate the outer layer of skin more evenly. It leaves almost no tack, which suits watery textures.

Dipropylene Glycol humectant

Dipropylene Glycol is a glycol used as a solvent and a light humectant. Its main job is keeping the rest of the formula dissolved and the texture fluid rather than adding hydration of its own.

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.

Hydroxyacetophenone preservative booster

Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.

Panthenol humectant

Panthenol is pro-vitamin B5: skin converts it to pantothenic acid. It is a humectant that holds water and leaves skin feeling soft and less tight, and it is one of the ingredients formulators reach for when a formula also contains something harsh.

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.

Adenosine active

Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.

Laminaria Japonica Extract plant extract

Laminaria Japonica is kombu kelp. Its extract carries alginates, minerals and iodine, and it is used as a hydrating, mineral-rich ingredient.

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.

Melaleuca Alternifolia (Tea Tree) Leaf Oil fragrance component

Tea Tree Leaf Oil is an essential oil from an Australian shrub, carrying terpinen-4-ol. Korean formulas use it in products aimed at blemish-prone skin; it is potent, aromatic, and one of the essential oils most likely to bother reactive skin.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809652583471

Made in

Republic of Korea

Category

Mask

Actives

Adenosine, Aloe Vera, Beta-Glucan, Centella Asiatica, Green Tea, Hyaluronic Acid, Licorice Root, Panthenol, Tea Tree

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.

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.