COSRX
The Peptide Collagen Lifting Glow Hydrogel Mask$9.99Medicube
Deep Peptide Radiance Mask (10ea box)
Medicube Deep Peptide Radiance Mask (10ea box) carries four separate peptide forms on its own ingredient panel, including Acetyl Dipeptide-1, Hexapeptide-1, Palmitoyl Tripeptide-5, Acetyl Octapeptide-3.
No reviews yet$17.99
20g
$9.00 per 10 g
- Korean-market formula
- Ships from California or direct from Korea
- Korean barcode and batch code intact
- Suited to
- normal skincombination skindry skin
- Helps with
- loss of bounce and firmnessgeneral day-to-day maintenance as part of a full routinea routine that wants a Korean-market step in this category
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Sungboon Editor Deep Collagen CICA Teatree Soothing MaskSungboon Editor
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Key benefits
- Four forms of peptide on one panel, not a single token inclusion
- Niacinamide on the same panel, the formula's active
- Allantoin on the same panel, the formula's active
- 20 g to a unit
- Korean-market formula, with its Korean barcode and batch code intact on the box
Key actives
5Niacinamide
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.
9Allantoin
Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
11Centella Asiatica Leaf 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.
25Hexapeptide-1
A six amino acid peptide used in formulas aimed at the look of even tone, which puts it with the smaller group of peptides directed at pigment rather than lines.
26Palmitoyl Tripeptide-5
Palmitoyl Tripeptide-5 is a fatted three-amino-acid peptide used for the look of firmness and fine lines. The palmitoyl tail is what lets it cross an oily surface.
29Acetyl Octapeptide-3
Acetyl Octapeptide-3 is an eight-amino-acid peptide used for the look of expression lines. It is usually paired with acetyl hexapeptide-8 rather than used alone.
Inside the formula
Inside the formula
39
Ingredients declared
No fragrance
on the list
5Niacinamide9Allantoin25Hexapeptide-129Acetyl Octapeptide-3
- 5Niacinamide
- 9Allantoin
- 25Hexapeptide-1
- 29Acetyl Octapeptide-3
Where each key active sits on the declared ingredient list, by entry number. Position is proportion: the further forward, the larger its share.
Medicube Deep Peptide Radiance Mask (10ea box)
What does the Deep Peptide Radiance Mask (10ea box) actually contain?
Its ingredient list is led by Niacinamide, with the rest of the formula built to support that active rather than compete with it. We list the ingredients in the order the manufacturer prints them, so the ones near the top of the panel are doing the most work in the formula.
How do I use the Deep Peptide Radiance Mask (10ea box)?
Use this mask as a weekly care step after cleansing. To apply, apply according to the format, leave on for the stated time, then remove and continue with the rest of the routine. Keep it to PM unless the packaging states otherwise, and give the rest of the routine a moment to settle before layering the next step. Give it a full bottle or box before judging the result, since most Korean routines are built for steady use rather than a single application.
Is the Deep Peptide Radiance Mask (10ea box) the same formula sold in Korea, or a US version?
This Deep Peptide Radiance Mask (10ea box) is the Korean-market formula, not a version reformulated for US shelves. It arrives with its original Korean-market barcode and batch code intact so the formula can be checked against the box on arrival.
Can I use the Deep Peptide Radiance Mask (10ea box) with other actives in my routine?
Yes, as long as it is used in its own step, a weekly care step after cleansing, and not layered on top of a product doing the same job. Introduce any new step gradually over the first week or two and keep an eye on how the skin responds before adding a second new active alongside it.
Who is the Deep Peptide Radiance Mask (10ea box) suited for?
It suits most skin types looking for weekly care step after cleansing rather than a single acute problem. It comes in a 20g format. Anyone with a known sensitivity to a specific ingredient should check the full ingredient panel on this page before buying.
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 (39): Water, Dipropylene Glycol, Glycerin, Butylene Glycol, Niacinamide, 1,2-Hexanediol, Cetyl Ethylhexanoate, Panthenol, Allantoin, Xylitol, Centella Asiatica Leaf Extract, Lactobacillus Ferment Lysate, Lactococcus Ferment Lysate, Bifida Ferment Lysate, Caprylyl Glycol, Sorbitan Laurate, Hydrogenated Lecithin, Hydrolyzed Hyaluronic Acid, Tocopherol, Asiaticoside, Madecassic Acid, Asiatic Acid, Acetyl Dipeptide-1, Cetyl Ester Acetyl, Hexapeptide-1, Palmitoyl Tripeptide-5, Beta-Glucan, Ceramide NP, Acetyl Octapeptide-3, hydrogenated Vegetable Oil, Behenyl Alcohol, Polyglyceryl-3, Methylglucose Distearate, Arginine, Carbomer, Adenosine, Hydroxyethylcellulose, Ethylhexylglycerin, Disodium EDTA
36 of 39 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.
- 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.
- 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.
- Cetyl Ethylhexanoate emollient
- Cetyl Ethylhexanoate is a synthetic ester used as a dry-feeling emollient. It spreads easily, leaves a silky rather than oily finish, and helps disperse pigments and UV filters evenly.
- 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.
- Allantoin active
- Allantoin is a comfrey-derived compound used to condition skin and soften the outer layer so it feels smoother. It is one of the standard additions to a formula built for easily irritated skin.
- 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.
- Centella Asiatica Leaf 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.
- Lactobacillus Ferment Lysate ferment
- Lactobacillus Ferment Lysate is the ferment with the bacterial cells broken open, so their contents are in the formula too. It is a conditioning ferment used in barrier-focused products.
24 more explained
- Lactococcus Ferment Lysate ferment
- Lactococcus Ferment Lysate is a lactic-culture ferment with the bacterial cells broken open, so their contents are in the formula too. It is used as a conditioning ferment in barrier-focused products.
- Bifida Ferment Lysate ferment
- Bifida Ferment Lysate is a bifidobacteria ferment with the cells broken open. It is the ingredient behind the first-essence category and is used for the look of tired, reactive skin.
- 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.
- Sorbitan Laurate emulsifier
- Sorbitan Laurate is a light emulsifier and solubiliser, used to keep small amounts of oil or fragrance dissolved in a watery formula.
- Hydrogenated Lecithin emulsifier
- Hydrogenated Lecithin is lecithin with its unsaturated bonds filled in, which makes it far more stable. It emulsifies and is the standard shell for the liposomes that carry actives into the outer layer of skin.
- Hydrolyzed Hyaluronic Acid humectant
- Hydrolyzed Hyaluronic Acid is hyaluronic acid cut into much shorter fragments. The smaller the fragment, the further into the outer layer it can settle, which is why serums stack several sizes together instead of using one.
- 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.
- Asiaticoside active
- Asiaticoside is one of the four active triterpenes isolated from centella and the most studied of them. Korean formulas name it separately when they want to show which fraction of the plant they standardised.
- Madecassic Acid active
- Madecassic Acid is the fourth centella triterpene. A list that names all four is telling you the extract was standardised rather than simply pressed, which is the difference between a cica claim and a cica formula.
- Asiatic Acid active
- Asiatic Acid is the third of centella's four triterpenes and the aglycone form, meaning it has no attached sugar. It is oil soluble, so it turns up in cica creams and balms more than in watery layers.
- Hexapeptide-1 peptide
- A six amino acid peptide used in formulas aimed at the look of even tone, which puts it with the smaller group of peptides directed at pigment rather than lines.
- Palmitoyl Tripeptide-5 peptide
- Palmitoyl Tripeptide-5 is a fatted three-amino-acid peptide used for the look of firmness and fine lines. The palmitoyl tail is what lets it cross an oily surface.
- Beta-Glucan polysaccharide
- Beta-Glucan is a polysaccharide from oats or yeast. It holds a large amount of water, forms a soothing film, and is one of the ingredients formulators reach for in products aimed at reactive skin.
- Ceramide NP barrier lipid
- Ceramide NP is the most used cosmetic ceramide, the same class of lipid that makes up roughly half the mortar between cells in the outer layer of skin. Added to a cream it slots into that structure, which is why ceramide formulas feel less leaky rather than merely greasy.
- Acetyl Octapeptide-3 peptide
- Acetyl Octapeptide-3 is an eight-amino-acid peptide used for the look of expression lines. It is usually paired with acetyl hexapeptide-8 rather than used alone.
- hydrogenated Vegetable Oil occlusive
- Plant oil hardened by hydrogenation. It behaves as a soft solid, so it gives balms and sticks their body and slows water loss from the surface.
- Behenyl Alcohol fatty alcohol
- Behenyl Alcohol is a long-chain fatty alcohol used to thicken and stabilise a cream. It gives a richer, more velvety body than cetyl alcohol.
- Polyglyceryl-3 humectant
- Polyglyceryl-3 is three glycerin units joined together. On its own it is a humectant, and it is the backbone the polyglyceryl-3 emulsifiers are built on.
- Arginine amino acid
- Arginine is an amino acid that does two jobs here: it holds water in the outer layer of skin, and it neutralises acidic gelling agents, which is why it often stands in for a synthetic pH adjuster.
- 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.
- 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.
- Hydroxyethylcellulose thickener
- Hydroxyethylcellulose is a cellulose thickener that builds a clear, smooth gel and holds the rest of the formula in suspension.
- 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.
- Disodium EDTA chelator
- EDTA is a chelator: it locks up trace metal ions from water and packaging that would otherwise turn a formula cloudy, off-colour or rancid. It does nothing to skin and appears at a fraction of a percent.
- Market
- Korean market, the version sold in Korea
- Made in
- Republic of Korea
- Volume
- 20g
- Category
- Mask
- Actives
- Adenosine, Allantoin, Beta-Glucan, Centella Asiatica, Ceramide NP, Hyaluronic Acid, Niacinamide, Panthenol, Peptides
- 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.
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.
How it works
The panel on this sheet mask names four forms of peptide rather than one: Acetyl Dipeptide-1, Hexapeptide-1, Palmitoyl Tripeptide-5, Acetyl Octapeptide-3. On this panel it sits alongside Niacinamide, Allantoin and Centella Asiatica Leaf Extract. 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.
How to use
- Use the Deep Peptide Radiance Mask after toner, in place of your serum step, in the evening.
- Unfold the sheet, line it up at the eyes first, then smooth it outward so no air is trapped underneath.
- Take it off at the time printed on the pack, pat in the essence left behind rather than rinsing, then go straight to your moisturizer.
- Two or three evenings a week is a normal rhythm. Do not leave it on past its time; a sheet that has gone dry takes moisture back off the face as it goes.
Worth knowing
- Patch test on the inner arm before the first full-face application, especially on skin that reacts easily to new products.
- Stop use and rinse off if stinging, burning, or new redness shows up rather than pushing through discomfort.
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Medicube Deep Peptide Radiance Mask (10ea box)
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
Medicube, Korean-market original
Medicube's Korean-market mask led by Niacinamide, the same formula sold in Korea.
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.
Medicube prints a QR code on the inner box. Scan it with your phone camera and it resolves to the brand’s own verification site.
Verify on medicubeverify.com →Source: Medicube packaging and verification site
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 the key actives in this formula, quoted from the medical sources linked beside each.
Peptides can be anti-inflammatory, and chronic inflammation damages the tissue in your skin.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic In skin, different peptides can encourage different things, from collagen formation to a reduction in inflammation to helping with wound healing depending on their structure.
Whitney Hovenic, MDDouble board-certified dermatologist and Mohs surgeon, Women's Health
1 more professional perspective
Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.
Ashlyn YankeAesthetician, Cleveland Clinic
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