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Snail Sleeping Hair Ampoule 20ml$7.50Dr.G
Doopi Lab Cool Salt Scalp Treatment 300g
Doopi Lab Cool Salt Scalp Treatment is Dr.G's hair treatment (300g), built around Salicylic Acid and Niacinamide. It is used on clean, towel-dried hair and scalp, as a leave-in or rinse-out treatment step. This is over-labeled in English for US sale rather than reformulated for the US market.
No reviews yet300 g
$7.50 per 100 g
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Congested skinUneven textureDehydrated skinSensitive skin
- Helps with
- Shoppers looking for Niacinamide in a scalp treatmentRoutines that want Niacinamide and Menthol in one stepFilling the scalp treatment step with a Korean-market formula
In stock. Arrives in 3 to 7 business days
We accept
You’re $100.00 away from free US shipping.
- 30-day returns
- Free US shipping on orders of $100 or more
- Tracked delivery to your door
How it works
The Doopi Lab Cool Salt Scalp Treatment is a 300g scalp treatment, used on a clean, towel-dried scalp, in the evening. The active it is built around is Niacinamide, named seventeenth on its own ingredient list. The same list carries Menthol, Madecassoside and Salicylic Acid, so the active is not the only thing on it worth naming. How much of the Niacinamide stays on the skin, and for how long, is decided by the scalp treatment format rather than by the list alone. Dr.G sells this Niacinamide scalp treatment in Korea, and this is that version.
Key benefits
- Niacinamide, the active this scalp treatment is built around
- Menthol and Madecassoside on the same list, actives
- Salicylic Acid on the same list, an exfoliant
- Tocopherol on the same list, an antioxidant
- Hydrolyzed Corn Protein and Hydrolyzed Pea Protein further down the same list
- Hydrolyzed Potato Protein and Hydrolyzed Rice Bran Protein further down the same list
How to use
- Apply to clean, towel-dried hair and scalp, leave on as directed, then rinse or leave in depending on the format printed on the pack.
Where does this scalp treatment go in my routine?
On a clean, towel-dried scalp, in the evening. Anything thinner than a scalp treatment goes on before it, and anything richer goes on after. If you are adding it to a routine you already like, give it a week on its own first, so what you see is the Niacinamide and not three changes at once.
Does this scalp treatment contain fragrance?
Yes. The ingredient list names Fragrance. It sits on the panel printed on this page, so you can read the position for yourself before you buy. If fragrance components are something you avoid, this scalp treatment is not the one.
What else is on the list besides Niacinamide?
Menthol, Madecassoside and Salicylic Acid. The order they are printed in on this scalp treatment's panel is the order on the box, so you can see where Niacinamide sits relative to them. Further down the same panel: Tocopherol, Hydrolyzed Corn Protein and Hydrolyzed Pea Protein.
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 (49): Water, Cetearyl Alcohol, Sorbitol, Brassicamidopropyl Dimethylamine, Isoamyl Laurate, C13-16 Isoalkane, Fragrance, Sea Water*, Aspartic Acid, Glyceryl Caprylate, Heptyl Undecylenate, Quaternium-87, Caprylyl Glycol, Dexpanthenol, Salicylic Acid, Propylene Glycol, Niacinamide, Sodium Chloride*, Butylene Glycol, Sodium Phytate, 1,2-Hexanediol, Clay Extract*, Enteromorpha Compressa Extract*, Hydrolyzed Corn Protein, Hydrolyzed Cottonseed Protein, Hydrolyzed Oat Protein, Hydrolyzed Pea Protein, Hydrolyzed Potato Protein, Hydrolyzed Rice Bran Protein, Hydrolyzed Rice Protein, Salicornia Herbacea Extract, Spirulina Platensis Extract*, Argania Spinosa Kernel Oil, Camellia Japonica Seed Oil, Centella Asiatica Extract, Persea Gratissima (Avocado) Oil, Moringa Oleifera Seed Oil, Macadamia Ternifolia Seed Oil, Maltodextrin, Vegetable Oil, Caesalpinia Spinosa Fruit Extract, Menthol, Helianthus Annuus (Sunflower) Sprout Extract, Polyquaternium-22, Tocopherol, Centella Asiatica Oil, Glycoproteins, Hydrolyzed Keratin, Madecassoside
Ingredient list read from inkeedecoder.com on 10 September 2026.
41 of 49 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.
- 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.
- Sorbitol humectant
- Sorbitol is a sugar alcohol used as a humectant. It hydrates like glycerin with a smoother, less sticky finish, and it adds a little body to watery textures.
- C13-16 Isoalkane emollient
- A light branched hydrocarbon used as a spreading agent. It thins a formula, carries pigments evenly and leaves a dry finish.
- Fragrance fragrance
- Fragrance, or Parfum, is a single declaration standing for a whole scent blend, which can be dozens of materials. Regulators allow it as a trade secret, so a list showing only this word does not say what the scent is made of. It is the most common trigger named by people with reactive skin.
- Sea Water* mineral
- Sea Water is filtered and desalinated seawater used in place of plain water. It carries magnesium, calcium and potassium, so it brings the mineral balance of the base closer to skin's own.
- Aspartic Acid amino acid
- Aspartic Acid is an amino acid used as a humectant and buffer, usually within a wider amino acid blend.
- Glyceryl Caprylate emulsifier
- Glyceryl Caprylate is a mild emulsifier that also makes a formula less hospitable to microbes, so it is often part of a preservative-free system.
- Heptyl Undecylenate emollient
- A plant-derived ester used as a light, dry emollient and as a solvent for oil-soluble ingredients. Formulas that avoid silicones use it for the same slip.
- Caprylyl Glycol preservative booster
- Caprylyl Glycol is a glycol that conditions skin and, more importantly, strengthens a preservative system so less of the traditional preservative is needed. It appears in most modern formulas built without parabens.
- Dexpanthenol 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.
- Salicylic Acid exfoliant
- Salicylic Acid is a BHA, and the only common exfoliant that is oil soluble, so it can work inside a pore rather than only on the surface. It loosens the dead cells that block pores and is used for the look of congested, oily skin.
29 more explained
- Propylene Glycol humectant
- Propylene Glycol is a small glycol used as a humectant and solvent. It hydrates and helps actives dissolve; newer formulas often swap it for propanediol, which does the same job with a lighter feel.
- 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.
- Sodium Chloride* thickener
- Sodium Chloride is salt. In a cleanser it thickens the liquid; in a mask or essence it balances the mineral content of the water phase. It has no active role.
- 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.
- Sodium Phytate chelator
- Sodium Phytate is a rice-derived chelator used in place of EDTA. It ties up trace metals so the formula stays stable and its colour and scent hold.
- 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.
- Enteromorpha Compressa Extract* plant extract
- Green laver, the parae of Korean cooking. Its extract is a mineral-rich, hydrating seaweed ingredient.
- Hydrolyzed Corn Protein protein
- Hydrolyzed Corn Protein is corn protein cut into small soluble pieces. On a label it usually sits with two or three other plant proteins, because each brings a different amino acid balance.
- Hydrolyzed Pea Protein protein
- Pea protein cut into small fragments so it dissolves in water. It is a plant protein used as a humectant and a light film former.
- Hydrolyzed Potato Protein protein
- Potato protein cut into small fragments. It is a plant protein used as a humectant and light film former.
- Hydrolyzed Rice Bran Protein protein
- Rice bran protein cut into fragments small enough to dissolve. It is used as a humectant and a smoothing film former.
- Hydrolyzed Rice Protein protein
- Hydrolyzed Rice Protein is rice protein broken into small fragments. It is a humectant and film former that leaves a soft, smooth finish.
- Salicornia Herbacea Extract plant extract
- Glasswort, the hamcho that grows on Korean tidal flats. It concentrates sea minerals as it grows, so its extract is used as a mineral-rich hydrating ingredient.
- Spirulina Platensis Extract* plant extract
- Spirulina is a blue-green microalga, unusually high in protein. Its extract carries amino acids and the blue pigment phycocyanin, which can tint a formula.
- Argania Spinosa Kernel Oil emollient
- Argan Oil is pressed from the argan kernel and is rich in oleic and linoleic acids plus vitamin E. It is a medium-weight emollient that absorbs reasonably fast.
- Camellia Japonica Seed Oil emollient
- Camellia Seed Oil is the traditional Korean and Japanese hair and skin oil, high in oleic acid. It is a light emollient that absorbs quickly for its richness.
- 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.
- Persea Gratissima (Avocado) Oil emollient
- Avocado oil, rich in oleic acid and plant sterols. It is one of the heavier plant oils, which suits dry skin and cleansing balms.
- Moringa Oleifera Seed Oil emollient
- Moringa Seed Oil is high in oleic acid and behenic acid and very stable. It is a conditioning emollient with a light, non-sticky finish.
- Macadamia Ternifolia Seed Oil emollient
- Macadamia Seed Oil is unusually high in palmitoleic acid, a fatty acid that human sebum also contains, which is why it absorbs faster than most nut oils. It is a cushioning emollient for dry skin.
- Maltodextrin film former
- Maltodextrin is a starch-derived sugar chain used to carry powdered extracts and to form a light film. It also gives a soft, smoothing feel.
- Vegetable Oil emollient
- Vegetable Oil is a collective declaration for a blend of plant oils. It names a class rather than a species, so the label does not say which plants.
- Caesalpinia Spinosa Fruit Extract plant extract
- Tara fruit extract, from a Peruvian pod. The pod is high in tannins and in the galactomannan sugar sold as tara gum, so the extract also adds a little body.
- Menthol active
- Menthol is the cooling compound in mint. It acts on the nerve receptor that also answers to cold, which is why skin feels cool without any change in temperature.
- Tocopherol antioxidant
- Tocopherol is vitamin E. It is an oil-soluble antioxidant that protects the oils in a formula from going rancid and works on skin as an emollient, and it is regularly paired with vitamin C because each keeps the other going for longer.
- Centella Asiatica Oil plant extract
- The oil-soluble fraction of centella, carried in a plant oil. It brings the fat-soluble part of the plant that a water extract leaves behind.
- Glycoproteins protein
- Glycoproteins are proteins carrying sugar chains, usually supplied by a ferment. They hold water and leave a conditioning film.
- Hydrolyzed Keratin protein
- Hydrolyzed Keratin is keratin, the protein hair and nails are built from, cut into fragments small enough to dissolve. In a formula it is a humectant and a smoothing film former.
- Madecassoside active
- Madecassoside is the centella triterpene most associated with the look of redness, and the one brands lead with in cica products. It is water soluble and stable, so it appears in essences as readily as in creams.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809838658047
- Made in
- Republic of Korea
- Volume
- 300 g
- Category
- Hair
- Actives
- Centella Asiatica, Madecassoside, Niacinamide, Salicylic Acid
- 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.
Where this unit came from
- 1Seoul
Bought as Korean-market stock - 2Barcode
Listed against the Korean barcode on its box - 3California or Korea
Ships to you from either, as the same Korean-market release
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.
Inside the formula
Inside the formula
Worth knowing
- Patch test this scalp treatment on a small area and wait a day before using it more widely, especially with Niacinamide on the list.
- This list names Fragrance, so skip it if fragrance components are something you avoid.
- Salicylic Acid on this list makes this scalp treatment an exfoliating step, so do not stack it with another one on the same night.
Complete the routine
- This itemDr.G Doopi Lab Cool Salt Scalp Treatment 300g$22.50

- Seal the routine in as the last stepDr.G Red Blemish Clear Soothing Cream 50ml$27.50

- The last step of the morning, over everything elseDr.G Green Mild Up Sun Plus SPF50+/PA++++ 50ml$30.00

Total for 3 items$80.00
Reviews
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Dr.G Doopi Lab Cool Salt Scalp Treatment 300g
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
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Dr.G, Korean-market original
Doopi Lab Cool Salt Scalp Treatment, 300g, Dr.G's hair treatment with Salicylic Acid and Niacinamide.
Verify your unit when it arrives
Verify your unit when it arrives
Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.
On the unit itself
- The Korean-market barcode, unaltered from the retail package.
- The manufacturer’s batch code, exactly as the maker printed it.
정품Genuine article, Korean-market stock
What professionals say
What professionals say
What skin-care professionals say about skin care, quoted from the medical sources linked beside each.
Your skin barrier is basically your outer layer of the skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic Pretty much every step of a Korean skin care routine is going to have some component of hydration.
Alok Vij, MDDermatologist, Cleveland Clinic
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