Sungboon Editor
Deep Collagen CICA Teatree Soothing Mask$11.76Black Collagen 300 Mask 27g X 4ea
Black Collagen 300 Mask is Dr.G's sheet mask, built around Hibiscus Sabdariffa Flower Extract and Soluble Collagen. It is used as a weekly treatment step, after cleansing and before the rest of the routine. This is sourced as the Korean-market formula rather than a US-shelf reformulation.
No reviews yet- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- Dehydrated skinSensitive skinSkin that has lost bounceDull, uneven tone
- Helps with
- Shoppers looking for Soluble Collagen in a sheet maskRoutines that want Soluble Collagen and Niacinamide in one stepFilling the sheet mask step with a Korean-market formulaAnyone who wants the Soluble Collagen sheet mask sold on Korean shelves
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 Black Collagen 300 Mask is a sheet mask, used after toner, in place of your serum step, in the evening. The protein it is built around is Soluble Collagen, named twenty-sixth on its own ingredient list. The same list carries Niacinamide, Adenosine and Saccharomyces Ferment, so the protein is not the only thing on it worth naming. How much of the Soluble Collagen stays on the skin, and for how long, is decided by the sheet mask format rather than by the list alone. This is the Original Korean Formula, the sheet mask Dr.G sells in Korea, Soluble Collagen and all.
Key benefits
- Soluble Collagen, the protein this sheet mask is built around
- Niacinamide and Adenosine on the same list, actives
- Saccharomyces Ferment and Lactobacillus Ferment on the same list, ferments
- Tocopherol and Biosaccharide Gum-1 further down the same list
- Malt Extract and Hibiscus Sabdariffa Flower Extract further down the same list
- Soluble Collagen named twenty-sixth on the manufacturer list printed on this page
How to use
- Unfold onto a cleansed face, leave on for fifteen to twenty minutes, then remove and pat any remaining essence into the skin.
Where does this sheet mask go in my routine?
After toner, in place of your serum step, in the evening. Toner goes on before it, and the rest of the routine goes on after you take the sheet mask off. 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 Soluble Collagen and not three changes at once.
Is this the Korean-market sheet mask or a US version?
The Korean-market one, Soluble Collagen and all. We match this sheet mask to its Korean barcode before it reaches the shelf, which is the check that tells you which market release you are holding.
What else is on the list besides Soluble Collagen?
Niacinamide, Adenosine and Saccharomyces Ferment. The order they are printed in on this sheet mask's panel is the order on the box, so you can see where Soluble Collagen sits relative to them. Further down the same panel: Lactobacillus Ferment, Tocopherol and Biosaccharide Gum-1.
Not on the ingredient list below: fragrance or parfum, denatured or SD alcohol, essential oils, silicones, parabens, sulfate surfactants, mineral oil or petrolatum and added color.
Full INCI (26): Water, Dipropylene Glycol, Glycerin, Niacinamide, 1,2-Hexanediol, Polyglyceryl-10 Laurate, Carbomer, Hydrogenated Poly (C6-14 Olefin), Tromethamine, Poncirus Trifoliata Fruit Extract, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Adenosine, Saccharomyces Ferment, Lactobacillus Ferment, Malt Extract, Betaine, Glyceryl Acrylate/Acrylic Acid Copolymer, Biosaccharide Gum-1, Sodium Phytate, Butylene Glycol, Pvm/Ma Copolymer, Hibiscus Sabdariffa Flower Extract (5,000 Ppb), Tocopherol, Propolis Extract, Soluble Collagen (100 Ppb)
Ingredient list read from inkeedecoder.com on 10 September 2026.
25 of 26 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.
- 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.
- 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.
- 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.
- Polyglyceryl-10 Laurate emulsifier
- Polyglyceryl-10 Laurate is a sugar-derived emulsifier and solubiliser, mild enough to be a standard choice in Korean essences. It dissolves small amounts of oil into water without any tightening feel.
- Carbomer thickener
- Carbomer is a synthetic polymer that only gels once a base neutralises it, which is why arginine or tromethamine sits nearby on the list. It gives the clear, non-stringy gel texture a xanthan formula cannot reach.
- Hydrogenated Poly (C6-14 Olefin) emollient
- Hydrogenated Poly(C6-14 Olefin) is a synthetic hydrocarbon emollient. It gives a smooth, silicone-like glide and is completely stable, so it does not go rancid.
- Tromethamine pH adjuster
- Tromethamine neutralises acidic thickeners such as carbomer so they gel, and holds a formula near skin-friendly pH. It is used at a fraction of a percent.
- Ethylhexylglycerin preservative booster
- Ethylhexylglycerin softens skin and boosts a preservative system, which is why it is nearly always sitting beside phenoxyethanol or 1,2-hexanediol. It also cuts down the odour bacteria produce, so it turns up in deodorising products.
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer thickener
- This is a carbomer relative with fatty side chains, so it thickens and stabilises an emulsion at the same time. It gives a light gel-cream body rather than a heavy one.
- Adenosine active
- Adenosine is a nucleoside that Korea's own cosmetic authority recognises as a wrinkle-care functional ingredient, which is why it appears on so many Korean lists at a low level. It is used for the look of fine lines and is stable and well tolerated.
13 more explained
- Saccharomyces Ferment ferment
- Saccharomyces Ferment is a brewer's yeast ferment. It supplies amino acids, sugars and B vitamins and is used as a conditioning, hydrating ferment.
- Lactobacillus Ferment ferment
- Lactobacillus Ferment is the liquid left after lactobacillus bacteria have fermented a plant or milk substrate. It carries the small molecules the fermentation produced, including lactic acid and amino acids, and is used for the look of dull, uneven skin.
- Malt Extract plant extract
- Malt Extract comes from sprouted barley and carries sugars, amino acids and B vitamins. It is used as a conditioning, hydrating extract.
- 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.
- Glyceryl Acrylate/Acrylic Acid Copolymer film former
- This is a polymer that forms a moisture-holding film on the surface, usually supplied with glycerin and propylene glycol as a hydrating complex.
- Biosaccharide Gum-1 polysaccharide
- Biosaccharide Gum-1 is a fermentation-derived sugar polymer that binds to skin and holds a moisture film in place. It gives a silky, non-tacky feel.
- 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.
- 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.
- Pvm/Ma Copolymer film former
- PVM/MA Copolymer is a film-forming polymer used to hold a formula in place and, in a mask, to give the peel-off film its strength.
- Hibiscus Sabdariffa Flower Extract (5,000 Ppb) plant extract
- Roselle hibiscus extract, deep red from anthocyanins and naturally acidic. It carries plant acids and is used as an antioxidant extract.
- 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.
- Propolis Extract plant extract
- Propolis is the resin bees collect from tree buds and use to seal the hive. It is rich in flavonoids, carries a warm amber colour and scent, and is used for the look of dull, stressed skin. It is a bee product, so it is worth knowing about if you react to those.
- Soluble Collagen (100 Ppb) protein
- Soluble Collagen is collagen kept in its intact triple-helix form and dissolved rather than cut up. It sits on the surface as a water-holding film.
- Market
- Korean market, the version sold in Korea
- EAN (barcode)
- 8809838657477
- Made in
- Republic of Korea
- Category
- Mask
- Actives
- Adenosine, Collagen, Niacinamide, Propolis
- 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 sheet mask on a small area and wait a day before using it more widely, especially with Soluble Collagen on the list.
- Introduce this sheet mask on its own for the first week, so anything your skin does is traceable to the Soluble Collagen rather than to three changes at once.
Complete the routine
- This itemDr.G Black Collagen 300 Mask 27g X 4ea$20.00

- 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$77.50
Reviews
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Dr.G Black Collagen 300 Mask 27g X 4ea
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
Black Collagen 300 Mask, Dr.G's sheet mask with Hibiscus Sabdariffa Flower Extract and Soluble Collagen.
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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