numbuzin No.5 Glutathione C Facial Spa Cleanser 200ml
Numbuzin No.5 Glutathione C Facial Spa Cleanser 200ml is a cleanser that names Glutathione on its own ingredient panel, sourced as the Korean-market formula.
No reviews yet- Ships from our California warehouse
- Duties prepaid
- Suited to
- normalcombinationdryoily
- Helps with
- tone and texture supported by Glycerindaily hydration through the skincare formula stepa Korean-market formula rather than a US reformulationa routine step matched to this format
In stock. Ships from our California warehouse, dispatched within 2 business days
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- 30-day returns
- Free US shipping on orders of $100 or more
- Dispatched within 2 business days
How it works
Glutathione is named on the ingredient panel on this cleanser. Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it. On this panel it sits alongside Stearoil Inulin, Tocopherol and Ascorbic Acid. Inulin is a plant fructan, most often from chicory root. It holds water and, in a formula, feeds the beneficial bacteria on the surface.
Key benefits
- Glutathione named on this product's own ingredient panel
- Stearoil Inulin on the same panel, the formula's polysaccharide
- Tocopherol on the same panel, the formula's antioxidant
- 200 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item
Key actives
Glutathione
Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it.
Stearoil Inulin
Inulin is a plant fructan, most often from chicory root. It holds water and, in a formula, feeds the beneficial bacteria on the surface.
Tocopherol
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.
Ascorbic Acid
Ascorbic Acid is pure vitamin C, the most researched form and also the least stable: it needs a low pH and airtight packaging to stay active. It is an antioxidant used for the look of dullness and uneven tone.
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 exact Korean-market formula, not a US-shelf reformulation. 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.
Where does this formula come from?
It comes from the Korean-market catalog rather than a US-shelf reformulation, and the packaging carries the same Korean-market batch coding a shopper would find on the box in Korea. That sourcing is checked on this row before the page is written, not assumed from the product name. It is the detail worth checking against the box on arrival.
What does Glutathione do in this formula?
Glutathione is a small peptide the body uses as one of its main antioxidants. In skincare it is used as an antioxidant and for the look of dullness; it is unstable in water, so formulas that carry it are usually built around protecting it. It is named on this product's own ingredient panel.
What does Tocopherol do in this formula?
Tocopherol is vitamin E, an antioxidant commonly paired into Korean formulas to round out a light stability system. It is one of the most common antioxidant inclusions in Korean formulation, usually present in a supporting rather than a headline role. 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
We accept
How to use
- Use it as the routine step, AM and PM, worked into the wider routine, giving it a moment to settle before the next step.
Worth knowing
- Patch test on the inner arm first if trying a new brand's formula for the first time.
- Stop use and check the ingredient list against any known sensitivities before continuing.
Reviews
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Korean-market original
The Korean-market skincare formula built around Glycerin, 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.
People with dry, flaky skin are more likely to see a benefit from using vitamin E because it enhances moisturization.
Amy Kassouf, MDDermatologist, Cleveland Clinic Using topical vitamin C can result in less cell damage and better-looking skin.
Melissa Piliang, MDDermatologist, Cleveland Clinic
1 more professional perspective
Xylitol, rhamnose, fructooligosaccharides, and inulin are the most widely used prebiotics for nourishing probiotics.
Shaheen MajeedPresident Worldwide, Sabinsa, Nutritional Outlook
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