Vitamin C Brightening Serum 40ml

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 (41): Water, Glycerin, Butylene Glycol, Betaine, Niacinamide, 1,2-Hexanediol, Methylpropanediol, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Theobroma Cacao (Cocoa) Extract, Hyaluronic Acid, Panthenol, Polyglyceryl-10 Laurate, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Tromethamine, Caprylic/Capric Triglyceride, Ethylhexylglycerin, Propanediol, Adenosine, Sodium Hyaluronate Crosspolymer, Tocopherol, Polyglyceryl-10 Oleate, Hydrolyzed Glycosaminoglycans, 3-O- Ethyl Ascorbic Acid, Sodium Phytate, Ascorbic Acid, Ceramide NP, Benzyl Glycol, Beta-Glucan, Dextrin, Capryloyl Salicylic Acid, Gluconolactone, Carbomer, Xanthan Gum, Fragrance(Parfum)

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

39 of 41 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.

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.

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.

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.

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.

Melia Azadirachta Flower Extract plant extract

Melia Azadirachta is neem. Its leaf and flower extracts are long-standing Ayurvedic ingredients, and Korean formulas use them in products aimed at the look of congested, blemish-prone skin.

Ocimum Sanctum Leaf Extract plant extract

Ocimum Sanctum is holy basil, or tulsi. Its leaf extract carries plant antioxidants and is used in formulas built for the look of stressed, reactive skin.

Curcuma Longa (Turmeric) Root Extract plant extract

Turmeric Root Extract carries curcuminoids, well studied plant antioxidants. It is used for the look of dullness and uneven tone, and it tints a formula faintly yellow.

Corallina Officinalis Extract plant extract

Corallina Officinalis is coral seaweed, which holds calcium and magnesium in its structure. Its extract is used as a mineral-rich conditioning ingredient.

Sodium Hyaluronate humectant

Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809261554602

Made in

Republic of Korea

Volume

40 ml

Category

Serum & Ampoule

Actives

Adenosine, Beta-Glucan, Ceramide NP, Hyaluronic Acid, Niacinamide, Panthenol, Salicylic Acid, 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.