Theracne 365 Active Serum 30ml

Not on the ingredient list below: fragrance or parfum, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.

Full INCI (31): Water/Aqua/Eau, Butylene Glycol, Glycerin, Alcohol Denat, Niacinamide, 1,2-Hexanediol, Silica, Diethoxyethyl Succinate, Helianthus Annuus (Sunflower) Seed Oil, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Ammonium Acryloyldimethyltaurate/VP Copolymer, Tromethamine, Salicylic Acid, Xanthan Gum, Dipotassium Glycyrrhizate, Glyceryl Caprylate, Lactic Acid, Disodium EDTA, Menthoxypropanediol, Ethylhexylglycerin, Sorbitan Isostearate, Lupinus Albus Seed Extract, Citric Acid, Zinc Chloride, Zinc PCA, Glycolic Acid, Asiaticoside, Zanthoxylum Piperitum Oil, Madecassic Acid, Asiatic Acid, Tocopherol

Ingredient list read from int.aestura.com on 10 September 2026.

29 of 31 explained

Water/Aqua/Eau 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.

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.

Alcohol Denat solvent

Alcohol Denat. is ethanol with a bitter additive that makes it undrinkable, which is a tax rule rather than a formulation choice. It behaves like alcohol: a fast-evaporating solvent that gives a weightless finish and can feel drying at higher levels.

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.

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.

Silica absorbent

Silica is finely milled mineral, essentially very pure sand. It absorbs oil, stops powders clumping and soft-focuses the look of pores and fine lines.

Diethoxyethyl Succinate solvent

Diethoxyethyl Succinate is a solvent that helps water-resistant actives spread and sink in evenly. It also leaves a light, silky feel.

Helianthus Annuus (Sunflower) Seed Oil emollient

Sunflower Seed Oil is high in linoleic acid, the fatty acid dry and blemish-prone skin is often short of. It is a light, non-fragrant emollient and one of the better tolerated plant oils.

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer thickener

This is the thickener behind most gel-cream textures. It builds a soft, bouncy gel that collapses to a light fluid as it is rubbed in.

Ammonium Acryloyldimethyltaurate/VP Copolymer thickener

This is a synthetic thickener that gels quickly and holds an emulsion stable across a wide pH range. It gives a light, non-tacky body.

Tromethamine pH adjuster

Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809013346400

Made in

Republic of Korea

Volume

30 ml

Category

Serum & Ampoule

Actives

Centella Asiatica, Glycolic Acid, Lactic Acid, Licorice Root, Niacinamide, Salicylic Acid, Zinc PCA

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.