Castanea Crenata Inner Shell Pore Tightening Serum 50ml

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

Full INCI (43): Castanea Crenata (Chestnut) Pellicle Extract (81%), Butylene Glycol, Water, 1,2-Hexanediol, Betaine, Niacinamide, Glycerin, Trehalose, Panthenol, Xylitylglucoside, Anhydroxylitol, Xylitol, Glucose, Glyceryl Acrylate/Acrylic Acid Copolymer, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Pueraria Lobata Root Extract, Pinus Palustris Leaf Extract, Ulmus Davidiana Root Extract, Oenothera Biennis (Evening Primrose) Flower Extract, Fucus Vesiculosus Extract, Prunella Vulgaris Extract, Vincetoxicum Atratum Extract, Palmitoyl Tripeptide-5, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Zea Mays (Corn) Leaf Extract, Centella Asiatica Extract, Magnesium Chloride, Isododecane, Dimethiconol, Dimethicone/Vinyl Dimethicone Crosspolymer, Undecane, Tridecane, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Corallina Officinalis Extract, Arginine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Hydroxyethylcellulose, Adenosine, Disodium EDTA

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

41 of 43 explained

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.

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.

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.

Betaine humectant

Betaine is a sugar-beet-derived humectant that cells use to hold water. In a formula it hydrates and takes the edge off cleansers and acids, which is why it often appears alongside them.

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.

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.

Trehalose humectant

Trehalose is a sugar that some desert plants use to survive drying out. In skincare it is a humectant that holds water in the outer layer and helps a formula feel comfortable rather than tight.

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.

Xylitylglucoside humectant

Xylitylglucoside is a sugar-derived humectant, the third member of the xylitol blend. Together the three hold water in the outer layer for longer than any of them does alone.

Anhydroxylitol humectant

Anhydroxylitol is a xylitol derivative used as a humectant. It is almost always part of the xylitol, anhydroxylitol and xylitylglucoside blend sold as a moisture-retention complex.

Xylitol humectant

Xylitol is a sugar alcohol humectant. It holds water in the outer layer of skin and is often paired with anhydroxylitol and xylitylglucoside as a hydration trio.

Glucose humectant

Glucose is a simple sugar used as a humectant and as food for the ferment ingredients in the same formula. It hydrates mildly and adds a soft slip.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809595057282

Made in

Republic of Korea

Volume

50 ml

Category

Serum & Ampoule

Actives

Adenosine, Centella Asiatica, Licorice Root, Niacinamide, Panthenol, Peptides, Sodium Hyaluronate, Trehalose, Urea

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.