CNP
2-Step Quick Soothing S.O.S Mask 5 Sheets$25.00ROUND LAB Vita Niacinamide Dark Spot Serum Mask 10ea
Round Lab Vita Niacinamide Dark Spot Serum Mask (20 ml) 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.
No reviews yet$40.00
- 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
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
Key benefits
- Vita Niacinamide Dark Spot Serum Mask is Round Lab's serum, sourced for the Korean market rather than reformulated for US shelves.
- Carries Niacinamide, which is the brightening, barrier-supporting workhorse behind most Korean tone-evening formulas, and it layers easily under sunscreen and makeup.
- Carries Betaine, which is a sugar beet-derived humectant that helps this formula feel less stripping on contact.
- Carries Allantoin, which is a calming, skin-conditioning agent frequently paired with soothing botanicals in Korean 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 uneven tone and dark spots.
Key actives
Niacinamide
A skin-conditioning ingredient widely used in Korean formulas for a more even-looking, brighter surface tone, layered in at the leave-on step rather than rinsed off.
Adenosine
A skin-conditioning ingredient found across many Korean firming lines, included here for the same reason it appears in those formulas: an association with a smoother, more resilient-looking surface over time.
Panthenol (Pro-Vitamin B5)
A humectant and skin-conditioning agent that helps the formula feel soft and comfortable rather than tight once it has absorbed, a staple of Korean toners and creams.
Allantoin
A conditioning ingredient long used in Korean skincare to keep a formula feeling calm and comfortable on skin that runs sensitive.
Betaine
A humectant derived from sugar beet that helps a watery Korean formula feel less thin and more cushioned on skin.
How to use
- Use the Vita Niacinamide Dark Spot Serum Mask after toner, in place of your serum step, in the evening.
- Apply the mask to the face and wait for 15 to 20 minutes. Remove it and gently pat the skin for better absorption.
- 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.
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.
- 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
Round Lab Vita Niacinamide Dark Spot Serum Mask 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 Niacinamide, Adenosine, Panthenol (Pro-Vitamin B5) 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 vita niacinamide dark spot serum mask, the version sold on shelves in Korea rather than a formula reworked for a different market.
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.
Reviews
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ROUND LAB Vita Niacinamide Dark Spot Serum Mask 10ea
How it felt, how your skin took it, what you layer it with. Straight answers help the next person choose.
We’re on gram!
Creators trying on authentic Korean skincare routines and products from us.
Rating a shelf of Dr. Althea products one by one.
Jasmine Loo · YouTube
Two hydrating serums side by side, IUNIK and Dr. Althea.
Kristin · YouTube
A walk through the Dr. Althea serum lineup and who each one suits.
auraofmahmuda · YouTube
A blunt first take on the Dr. Althea range.
Lexi Chang · YouTube
A first look at the viral 345 Relief Cream before buying.
Shelley Nayak · YouTube
A first try of the Dr. Althea serum on camera.
Hannah Ziad · YouTube
Vita Niacinamide Dark Spot Serum Mask, Round Lab's serum in its authentic Korean-market formula.
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 the key actives in this formula, quoted from the medical sources linked beside each.
Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.
Taylor Bullock, MDDermatology resident, Cleveland Clinic Allantoin can tone down the dryness of the individual cells. It increases the water content of the skin, which means it helps to hydrate and moisturize.
Wilma Bergfeld, MDDermatologist, Cleveland Clinic
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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