Yuja Niacin Blemish Care Serum Mask 25g*10ea

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 (43): Water, Glycerin, Glycereth-26, Niacinamide, Citrus Junos Fruit Extract, Methylpropanediol, 1,2-Hexanediol, Hydroxyacetophenone, Arginine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Butylene Glycol, Hydroxyethylcellulose, Allantoin, Carbomer, Propanediol, Polyglyceryl-4 Caprate, Polyglyceryl-6 Caprylate, Adenosine, Ethylhexylglycerin, Disodium EDTA, Citrus Tangerina (tangerine) Peel Oil, Coptis Japonica Root Extract, Citrus Paradisi (grapefruit) Peel Oil, Panthenol, Tocopherol, Portulaca Oleracea Extract, Helianthus Annuus (sunflower) Seed Oil, Pogostemon Cablin Oil, Cymbopogon Martini Oil, Arbutin, 3-O-Ethyl Ascorbic Acid, Tricholoma Matsutake Extract, Scutellaria Baicalensis Root Extract, Oryza Sativa (rice) Extract, Angelica Keiskei Leaf/Stem Extract, Panax Ginseng Root Extract, Rosmarinus Officinalis (rosemary) Leaf Extract, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Glutathione, Limonene, Geraniol

Ingredient list read from somebymi.co.kr on 13 September 2026.

41 of 43 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.

Glycereth-26 humectant

Glycereth-26 is a modified glycerin that hydrates with far less stickiness than glycerin itself. It is a common way to load water into a formula that has to stay light.

Niacinamide active

Niacinamide is vitamin B3, and it is the most studied active in Korean formulation. It is used at roughly 2 to 5 percent for the look of uneven tone and visible pores, and it is water soluble, stable and comfortable beside almost every other active, which is why it turns up in so many lists.

Citrus Junos Fruit Extract plant extract

Yuja fruit extract, the Korean citrus preserved as yuja tea. It carries vitamin C, fruit acids and flavonoids.

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.

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.

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.

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.

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.

Hydroxyethylcellulose thickener

Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809647390657

Made in

Republic of Korea

Category

Mask

Actives

Adenosine, Allantoin, Arbutin, Ginseng, Glutathione, Hyaluronic Acid, Niacinamide, Panthenol, Rice Extract, Sodium Hyaluronate, Vitamin C

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.