O2 Scalp Water Shampoo

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 (23): Purified Water (17.5% From Jeju), Disodium Laureth Sulfosuccinate, Glycerine, 1,2-Hexanediol, Coco-Glucoside, Centella Asiatica Extract, Houttuynia Cordata Extract, Butylene Glycol, Pentylene Glycol, Sodium Cocoyl Apple Amino Acids, Panthenol, Niacinamide, Lactobacillus/Soybean Ferment Extract, Lactobacillus/Rice Ferment, Lactobacillus/Panax Ginseng Root Ferment Filtrate, Saccharomyces/Coix Lacryma-Jobi Ma-Yuen Seed Ferment Filtrate, Saccharomyces/Potato Extract Ferment Filtrate, Propanediol, Citric Acid, Caprylyl Glycol, Polyquaternium-10, Rosmarinus Officinalis (Rosemary) Leaf Oil, Allantoin

Ingredient list read from incidecoder.com on 30 August 2026.

23 of 23 explained

Purified Water (17.5% From Jeju) 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.

Disodium Laureth Sulfosuccinate surfactant

A sulfosuccinate surfactant: milder than a sulfate, with more foam than an amino-acid one. It is often used to soften a sulfate-based cleanser.

Glycerine 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.

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.

Coco-Glucoside surfactant

Coco-Glucoside is a mild sugar-derived surfactant used in gentle cleansers, usually with a second surfactant to build foam.

Centella Asiatica Extract plant extract

Centella Asiatica is the plant behind the whole cica category, sold as gotu kola or Madagascar centella. Its extract is the anchor of Korean formulas built for easily reddened skin, and its work is done by four triterpenes: asiaticoside, madecassoside, asiatic acid and madecassic acid.

Houttuynia Cordata Extract plant extract

Houttuynia Cordata is heartleaf, and it is one of the two or three anchor plants of Korean calming skincare. Its extract carries quercitrin and other flavonoids and is used for the look of redness and blemish-prone skin.

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.

Pentylene Glycol humectant

Pentylene Glycol hydrates and, like the other longer-chain glycols, makes a formula less hospitable to microbes so the preservative system can be lighter. It also improves how evenly a product spreads.

Sodium Cocoyl Apple Amino Acids surfactant

Amino acids from apple joined to coconut fatty acids, which turns them into a very mild cleanser. It foams gently and rinses clean.

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.

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.

Market

Korean market, the version sold in Korea

EAN (barcode)

8809083975166

Made in

Republic of Korea

Volume

350 ml

Category

Hair

Actives

Allantoin, Centella Asiatica, Ginseng, Heartleaf (Houttuynia Cordata), Niacinamide, Panthenol

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.