Is this the same formula sold in Korea, or a version made for the US market?

This is the Korean-market formula, the same one sold on shelves in Korea, not a separate version reformulated for US retail. The pack you open matches what a shopper in Seoul buys.

Where does this step go in a routine?

It belongs once or twice a week, as a treatment step after cleansing and before your regular toner. Placing it earlier or later than that changes how it feels going on and how well the steps after it absorb, so keeping it in that order is worth doing even on a simplified routine.

Can I use this if my skin runs sensitive?

This wash-off mask is formulated with skin types like normal skin, combination skin in mind, but any new product is worth a patch test first if your skin reacts easily. A short patch test on the inside of your arm or behind an ear is worth doing with any new product before it goes on your face, and that goes for sensitive skin most of all.

How long before I will know if this is right for my skin?

Give it a full week or two of consistent use before judging, since a single use rarely tells you much either way. Watch for how skin feels rather than for any specific number, and stop use if you notice ongoing irritation.

Round Lab

Soybean Panthenol Mask 10pcs

Name: Round Lab Soybean Panthenol Mask 10pcs
Brand: Round Lab
SKU: 9058147353
Price: 30.0 USD
Availability: InStock

Round Lab Soybean Panthenol Mask 10pcs (10 ea) is a wash-off mask for anyone who wants a once-weekly treatment step rather than a daily one, used once or twice a week.

Reviewed by Nurcan Saglam, licensed dermo-cosmetic expert (Paris)

No reviews yet

$30.00

10 ea

Korean-market formula
Ships from California or direct from Korea
Korean barcode and batch code intact

Suited to: Normal skinCombination skinOily skinSkin that runs sensitive

Helps with: A weekly reset rather than a daily habitSkin that wants a heavier dose of a formula than a daily cream givesCongestion or a dull surface texture

One-time purchase

$30.00

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$27.00

In stock. Arrives in 3 to 7 business days

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How it works

Round Lab Soybean Panthenol Mask 10pcs is built as a wash-off mask, so its texture and finish are designed around one specific place in a routine rather than several. The formula's own ingredient list carries Adenosine, Panthenol (Pro-Vitamin B5), Allantoin among its named ingredients, placed at a level consistent with a wash-off mask rather than a spot treatment. The texture is built for use once or twice a week, as a treatment step after cleansing and before your regular toner, which is why it behaves differently on skin than a product meant for a different point in a routine. This is the Korean-market formula of the soybean panthenol mask 10pcs, the version sold on shelves in Korea rather than a formula reworked for a different market.

Key benefits

Soybean Panthenol Mask 10pcs is Round Lab's mask, sourced for the Korean market rather than reformulated for US shelves.
Carries Glycine Max (Soybean) Seed Extract, which is the fermented soybean extract behind Round Lab's Soybean line, chosen for its skin-conditioning fatty acid profile.
Carries Panthenol, which is provitamin B5, a humectant that helps a formula feel less tight after it dries down.
Carries Ceramide NP, which is a lipid that mimics the skin's own barrier-building blocks, a staple of Korean barrier-support formulas.
Ships with the Korean-market barcode and batch code intact, the same box sold on Korean shelves rather than a US repack.
Suited to shoppers targeting dehydration and a compromised moisture barrier.

How to use

Use Round Lab Soybean Panthenol Mask 10pcs once or twice weekly. Apply an even layer over cleansed, dry skin, avoiding the eye area, left on for ten to fifteen minutes, or until the layer sets, then rinsed with lukewarm water. It goes once or twice a week, as a treatment step after cleansing and before your regular toner.

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39 of 40 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.
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.
Glycine Max (Soybean) Seed Extract plant extract: Soybean Seed Extract carries isoflavones, plant sterols and soy proteins. It is used as a conditioning antioxidant extract.
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.
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.
Cholesterol barrier lipid: Cholesterol is the third of the three lipids the outer layer of skin is built from, with ceramides and fatty acids. Formulas that carry all three are following the ratio skin itself holds.
Brassica Campestris (Rapeseed) Sterols emollient: Phytosterols are plant sterols, structurally close to the cholesterol in skin's own lipid layer. They soften skin and help the oil phase of a formula hold together.
Oleic Acid fatty acid: Oleic Acid is the main fatty acid in olive and many nut oils. It is a rich emollient that softens skin and can feel heavy on skin prone to congestion.
Stearic Acid fatty acid: Stearic Acid is a saturated fatty acid from plant fats, and one of the three lipid classes skin's own barrier is built from. In a formula it thickens, stabilises the emulsion and can be turned into a soap-style cleanser by adding a base.
Ceramide AP barrier lipid: Ceramide AP is a second cosmetic ceramide, distinguished by an extra hydroxyl group. Formulas that name several ceramides are copying the mix skin actually holds rather than relying on one.

27 more explained

Sorbitan Olivate emulsifier: Sorbitan Olivate is an olive-derived emulsifier, the oil-loving half of the pair sold as Olivem. It holds oil into water and leaves a light, non-waxy feel.
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.
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer thickener: This is the thickener behind most gel-cream textures. It builds a soft, bouncy gel that collapses to a light fluid as it is rubbed in.
Polyurethane-15 film former: Polyurethane-15 is a flexible film-forming polymer. It holds a formula in place as a stretchy film, which is why it appears in long-wear and peel-off products.
Xanthan Gum thickener: Xanthan Gum is a polysaccharide made by fermenting sugar. It thickens a watery formula into a gel and holds the whole thing in suspension so nothing separates. Too much of it and a serum turns stringy, which is why it appears in fractions of a percent.
Sorbitan Isostearate emulsifier: Sorbitan Isostearate is a mild emulsifier that holds water into oil, the direction a cleansing balm or an oil-based cream needs.
Glyceryl Stearate SE emulsifier: Glyceryl Stearate SE is the self-emulsifying grade, supplied with a little soap already built in so it can hold an emulsion with less help. It thickens and softens like the plain form.
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.
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.
Cetearyl Olivate emulsifier: Cetearyl Olivate is the water-loving half of the olive-derived emulsifier pair. With sorbitan olivate it builds emulsions whose lipid profile is close to skin's own.
Squalane emollient: Squalane is the stable, saturated version of squalene, a lipid human skin already makes. It is a light emollient that absorbs quickly, does not oxidise, and is one of the few oils widely considered safe for blemish-prone skin. Most cosmetic squalane is now from sugarcane or olive rather than shark.
Caprylic/Capric Triglyceride emollient: Caprylic/Capric Triglyceride is the light fraction of coconut oil, with the heavy parts removed. It is the workhorse emollient of modern formulas: it softens skin, dissolves oil-soluble actives and absorbs without the greasy weight of a whole plant oil.
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.
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.
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.
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.
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.
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.
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.
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.
Glyceryl Stearate Citrate emulsifier: Glyceryl Stearate Citrate is a mild, citrate-modified emulsifier. It holds oil and water together and is chosen for formulas aimed at reactive skin.
Sodium Surfactin surfactant: A biosurfactant produced by Bacillus fermentation. It lowers surface tension at very low concentrations, so a formula needs very little of it.
Phytosphingosine barrier lipid: Phytosphingosine is the backbone every ceramide is built on, and skin uses it in its own lipid layer. In a formula it works with ceramides and cholesterol and also keeps the product stable against microbes.
Tetraacetylphytosphingosine barrier lipid: A protected form of phytosphingosine, one of the sphingoid bases that ceramides are built from. The acetyl groups are what keep it stable in a formula.
Hydroxyacetophenone preservative booster: Hydroxyacetophenone is an antioxidant that also strengthens a preservative system, so a formula needs less traditional preservative. Korean formulas pair it with 1,2-hexanediol constantly.
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.

Inside the formula

Ingredients declared

No fragrance

on the list

Worth knowing

Rinse fully with lukewarm water rather than leaving any residue behind, since a wash-off mask is not meant to sit on skin overnight.
Keep this to once or twice a week; using a treatment mask daily works against a normal routine rather than for it.

Complete the routine

This itemRound Lab Soybean Panthenol Mask 10pcs$30.00
Seal the routine in as the last stepRound Lab Dokdo Lotion 400ml$32.50
Cleanse first, so the next step meets bare skinRound Lab Birch Juice Cleansing Pad 60Pads$27.50

Total for 3 items$90.00

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Round Lab Soybean Panthenol Mask 10pcs

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Round Lab, Korean-market original

Soybean Panthenol Mask 10pcs, Round Lab's mask in its authentic Korean-market formula.

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 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