numbuzin No.5+ Vitamin-Niacinamide Concentrated Pad 70P
Numbuzin No.5+ Vitamin-Niacinamide Concentrated Pad 70P is a formula led by Niacinamide on its own ingredient panel, sourced as the Korean-market formula.
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- Suited to
- normalcombinationdryoily
- Helps with
- tone and texture supported by Niacinamidedaily hydration through the skincare formula stepa Korean-market formula rather than a US reformulationa routine step matched to this format
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How it works
Niacinamide leads the ingredient panel on this formula. 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. On this panel it sits alongside Gluconolactone, Gardenia Extract and Dipotassium Glycyrrhizate. Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.
Key benefits
- Niacinamide named on this product's own ingredient panel, near the top of it
- Gluconolactone on the same panel, the formula's exfoliant
- Gardenia Extract on the same panel, the formula's plant extract
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Key actives
Niacinamide
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.
Gluconolactone
Gluconolactone is a PHA, the gentlest exfoliant class. Its molecule is too large to penetrate quickly, so it smooths the surface without the sting of an AHA, and it is a humectant at the same time.
Gardenia Extract
A gardenia extract declared by common name, with the plant part unstated. Gardenia is the traditional East Asian yellow dye plant, so an extract of it can tint a formula.
Dipotassium Glycyrrhizate
Dipotassium Glycyrrhizate is a water-soluble salt derived from licorice root. It is the licorice fraction Korean formulas use for the look of redness, and it is far more stable in water than the whole extract.
How do I know this is authentic and not a US-reformulated version?
Check the box against the listing: an authentic Korean-market SKU carries Korean-primary packaging and an intact Korean-market batch code, not a US-only relabel. Numbuzin's Korean-market formulas are sourced specifically to preserve that, rather than substituted for the US-shelf version some retailers carry under the same name.
When in a routine should I use this skincare formula?
Use it as the routine step, AM and PM, worked into the wider routine. Placing a skincare formula out of order is the most common reason a Korean routine feels like it is not working, so keep this one at its own step rather than doubling it up with a product built for a different stage. Give it a few weeks at that placement before judging the result.
Is this the same formula sold in Korea, or a US version?
This is the Original Korean Formula, carried through with its intact Korean-market batch coding. Numbuzin sells a separate reformulation on some US shelves, and this listing is not that version. The Korean-market batch coding and packaging travel with it, which is the detail worth checking against the box on arrival.
What does Niacinamide do in this formula?
Niacinamide supports an even-looking skin tone and works alongside the formula's humectants to keep the surface comfortable. It is one of the most studied actives in Korean formulation for tone evenness and is gentle enough for daily AM and PM use. It sits at its own position on this product's own ingredient list rather than being assumed from the product name.
- Ships from
- California
Duties are prepaid. Nothing is owed at delivery. Returns are accepted for 30 days, by mail.
Orders ship from our California warehouse, dispatched within 2 business days, and arrive in 3 to 5 days. Shipping is free on orders of $100 or more.
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 - 2Customs
Duty paid by us before it enters the US - 3California
Ships domestically, no international leg
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.
Import duties are paid by us before the parcel reaches you, so nothing is owed at the door, 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.
Payment and security
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How to use
- Start at two nights a week and build up only if the skin stays comfortable afterwards.
- Sweep outward across the whole face with the textured side rather than working only on the darker patches.
- Turn the pad over and press the smooth side back over the same area to leave the liquid behind.
- Do not use it on the same night as another exfoliating product, and never on skin that is already stinging.
Worth knowing
- Introduce it two to three nights a week at first and watch how skin responds before using it nightly.
- Layer sunscreen the following morning, since any exfoliating step raises how visible the sun's effects can be.
Reviews
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Korean-market original
The Korean-market skincare formula built around Niacinamide, from Numbuzin, sourced for the Korean market and reviewed before it ever reaches this page.
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.
Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.
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.
It contains liquiritin, an active compound that helps to disperse and remove existing melanin in the skin.
Jennifer Chwalek, MDDermatologist, Byrdie 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
1 more professional perspective
This means that gluconolactone acts as an exfoliating acid, but also as a moisturizer. It has moisturizing, soothing, and lightening properties, working well on dry skin.
Paola PeruginiPhD, Journal of Cosmetic Dermatology
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