# Numbuzin No.1 Pantothenic B5 Active Soothing Serum 50ml

The Korean-market serum built around Niacinamide, from Numbuzin, sourced for the Korean market and reviewed before it ever reaches this page.

- Brand: Numbuzin
- Product: No.1 Pantothenic B5 Active Soothing Serum 50ml
- Price: $37.50
- Availability: In stock
- Size: 50 ml
- Market: Korean market, the version sold in Korea
- Made in: Republic of Korea
- EAN (barcode): 8809652583211
- Category: Serums & Ampoules

## Key benefits

- Panthenol named on this product's own ingredient panel, near the top of it
- Niacinamide on the same panel, the formula's active
- Sophora Angustifolia Root Extract on the same panel, the formula's plant extract
- 50 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item

## How it works

Panthenol leads the ingredient panel on this serum. 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. On this panel it sits alongside Niacinamide, Sophora Angustifolia Root Extract and Pantothenic Acid. 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

1. Apply after the toner while the skin is still damp so a small dose covers the face in one pass.
2. Press it in with the flats of the fingers rather than rubbing it around in circles.
3. Follow with a cream to hold it in place, then sunscreen as the final morning step.
4. Do not stack it with an exfoliating step in the same sitting, since the reason you bought it is that the skin already reacts.

## Ingredients

Water, Butylene Glycol, Niacinamide, Glycerin, Dipropylene Glycol, 1,2-Hexanediol, Panthenol, Sophora Angustifolia Root Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Propanediol, Diethoxyethyl Succinate, Tromethamine, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/VP Copolymer, Betaine, Pantothenic Acid, Trehalose, Ethylhexylglycerin, Glyceryl Oleate, Sodium Phytate, Allantoin, Alpha-Arbutin, Houttuynia Cordata Extract, Lauryl Glucoside, Myristyl Glucoside, Polyglyceryl-6 Laurate, Zinc PCA, Melia Azadirachta Leaf Extract, Tocopherol, Glycyrrhiza Uralensis (Licorice) Root Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Centella Asiatica Extract, Sodium Hyaluronate, Citric Acid, Solanum Melongena (Eggplant) Fruit Extract, Beta-Glucan, Ocimum Sanctum Leaf Extract, Hyaluronic Acid, Decyl Glucoside, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Dipotassium Glycyrrhizate, Hydrolyzed Hyaluronic Acid, Simmondsia Chinensis (Jojoba) Seed Oil, Camellia Sinensis Leaf Extract, Centella Asiatica Leaf Extract, Cladosiphon Okamuranus Extract, Salix Alba (Willow) Bark Extract, Sodium Acetylated Hyaluronate, Coffea Arabica (Coffee) Seed Extract, Beta-Sitosterol, Polyglyceryl-10 Stearate, Citrus Aurantium Bergamia (Bergamot) Leaf Extract, Pinus Densiflora Leaf Extract

## FAQ

### 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 serum?

Use it as the serum step, AM and PM, after toner and before moisturizer. Placing a serum 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 authentic Korean-market version of the formula, not a US-shelf substitute. 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.

### What does Panthenol do in this formula?

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. It is named on this product's own ingredient panel.

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Page: https://korean-pharmacy.com/products/numbuzin-no-1-pantothenic-b5-active-soothing-serum-50ml