Black Tea Youth Enhancing Ampoule 50ml (Black Tea + Adenosine)

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

Full INCI (37): Water/Aqua/Eau, Butylene Glycol, Glycerin, Dipropylene Glycol, Niacinamide, 1,2-Hexanediol, Squalane, Glyceryl Polymethacrylate, Cetearyl Alcohol, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Glyceryl Stearate, Xanthan Gum, Allantoin, Hydrogenated Lecithin, Ethylhexylglycerin, Stearic Acid, Polyglyceryl-3 Methylglucose Distearate, Adenosine, Palmitic Acid, Fragrance/Parfum, Disodium EDTA, Sodium Hyaluronate, Limonene, Camellia Sinensis Leaf Extract (Black Tea), Dextrin, Theobroma Cacao (Cocoa) Extract, Linalool, Citronellol, Myristic Acid, Pentylene Glycol, Lauric Acid, Tocopherol, Acrylates/Stearyl Methacrylate Copolymer, Tremella Fuciformis Sporocarp Extract, Hyaluronic Acid, Achillea Millefolium Extract, Ceramide NP

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

35 of 37 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.

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.

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.

Squalane emollient

Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.

Glyceryl Polymethacrylate film former

Glyceryl Polymethacrylate is a polymer that forms a smooth, water-holding film and gives a formula a cushioned, non-sticky feel.

Cetearyl Alcohol fatty alcohol

Cetearyl Alcohol is a waxy solid, not the drying kind of alcohol. It is a blend of cetyl and stearyl alcohols used to thicken a cream and keep oil and water from separating, and it softens skin as it does so.

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.

Glyceryl Stearate emulsifier

Glyceryl Stearate is glycerin joined to stearic acid, and one of the most used emulsifiers in skincare. It holds oil and water together and thickens the result, and it softens skin at the same time.

Xanthan Gum thickener

Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809843677071

Made in

Republic of Korea

Volume

50 ml

Category

Serum & Ampoule

Actives

Adenosine, Allantoin, Ceramide NP, Green Tea, Hyaluronic Acid, Niacinamide, Sodium Hyaluronate, Squalane

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.