# Numbuzin No.5+ Vitamin Concentrated Serum 30ml

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.5+ Vitamin Concentrated Serum 30ml
- Price: $30.00
- Availability: In stock
- Size: 30 ml
- Market: Korean market, the version sold in Korea
- Made in: Republic of Korea
- EAN (barcode): 8809652581774
- Category: Serums & Ampoules

## Key benefits

- Three forms of vitamin c on one panel, not a single token inclusion
- Vaccinium Vitis-Idaea Fruit Extract on the same panel, the formula's plant extract
- Niacinamide on the same panel, the formula's active
- 30 ml to a unit
- Korean GS1 barcode matched against a Korea sourcing supplier's record for this item

## How it works

The panel on this serum names three forms of vitamin c rather than one: 3-0-Ethyl Ascorbic Acid, Ascorbic Acid, Ascorbyl Glucoside. 3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative that skin converts to ascorbic acid. It survives in a formula far better than pure vitamin C and works at a gentler pH, so it suits skin that finds the pure acid uncomfortable. On this panel it sits alongside Vaccinium Vitis-Idaea Fruit Extract, Niacinamide and Tranexamic Acid. Lingonberry fruit extract, a Nordic berry. It carries anthocyanins, arbutin and fruit acids, and it is used as an antioxidant botanical.

## 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 over the whole face rather than onto the marks only, since even tone needs even coverage.
3. Always follow with a cream, because a concentrated layer left unsealed is where tightness comes from.
4. Do not skip the morning sunscreen, since tone work without that last layer is undone faster than it is built.

## Ingredients

Vaccinium Vitis-Idaea Fruit Extract, Butylene Glycol, Niacinamide, Panthenol, Tranexamic Acid, Water, 1,2-Hexanediol, Neopentyl Glycol Dicaprate, Caprylic/Capric Triglyceride, Sorbitol, Bifida Ferment Lysate, Chondrus Crispus Extract, Butyrospermum Parkii (Shea) Butter, Saccharum Officinarum (Sugarcane) Extract, Alpha-Arbutin, Sodium Hyaluronate, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Curcuma Longa Turmeric Root Extract, Corallina Officinalis Extract, Tremella Fuciformis (Mushroom) Extract, Pentylene Glycol, Glycerin, 3-0-Ethyl Ascorbic Acid, Bisabolol, Tromethamine, Ethylhexylglycerin, Adenosine, Hydrogenated Lecithin, Allantoin, Glutathione, Ceramide NP, Beta-Glucan, Dipotassium Glycyrrhizate, Tocopherol, Ascorbic Acid, Ascorbyl Glucoside, Tocopheryl Acetate, Hydroxypropyl Cyclodextrin, Ubiquinone, Thioctic Acid, Potassium Hydroxide, Behenyl Alcohol, Carbomer, Xanthan Gum, Disodium EDTA

## 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 sourced for the Korean market rather than reformulated for US shelves. 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, a conditioning agent Korean formulas lean on to keep the surface feeling soft rather than tight. It has a long track record in Korean skincare as a mild, everyday conditioning agent that layers cleanly under the rest of a routine. It sits at its own position on this product's own ingredient list rather than being assumed from the product name.

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Page: https://korean-pharmacy.com/products/numbuzin-no-5-vitamin-concentrated-serum-30ml