# Numbuzin No.6 Deep Sleep Mask Serum 50ml

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

- Brand: Numbuzin
- Product: No.6 Deep Sleep Mask Serum 50ml
- Price: $32.50
- Availability: In stock
- Size: 50 ml
- Market: Korean market, the version sold in Korea
- Made in: Republic of Korea
- EAN (barcode): 8809652580210
- Category: Serums & Ampoules

## Key benefits

- Four forms of hyaluronic acid on one panel, not a single token inclusion
- Glacial Water on the same panel, the formula's plant extract
- Niacinamide on the same panel, the formula's active
- 50 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 four forms of hyaluronic acid rather than one: Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer. Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it. On this panel it sits alongside Glacial Water, Niacinamide and Chlorella Vulgaris Extract. Glacial Water is meltwater collected from glacier ice, used in place of ordinary water as a formula base. It is water with its own mineral profile rather than an active.

## How to use

1. Finish the rest of your evening routine first, so this goes on over anything thinner.
2. Press a thin even layer across the face and down the neck rather than rubbing it in.
3. Leave it on overnight and cleanse as usual in the morning instead of adding more over the top.
4. Do not use it as well as your night cream, since it stands in for that step rather than joining it.

## Ingredients

Glacial Water (63%), Butylene Glycol, Propanediol, Glycerin, Niacinamide, 1,2-Hexanediol, Purified Water, Chlorella Vulgaris Extract, Xylitylglucoside, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Xylitol, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Aloe Barbadensis Flower Extract, Solanum Melongena (Eggplant) Fruit Extract, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Curcuma Longa (Turmeric) Root Extract, Hyaluronic Acid, Glycereth-26, Panthenol, Pentylene Glycol, Glucose, Sodium PCA, Anhydroxylitol, Fructooligosaccharides, Fructose, Polyglyceryl-10 Laurate, Sodium Citrate, Dipotassium Glycyrrhizate, Sodium Hyaluronate Crosspolymer, Ethylhexylglycerin, Adenosine, Hydrolyzed Glycosaminoglycans, Citric Acid, Benzyl Glycol, Tocopherol, Xanthan Gum

## FAQ

### 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.

### 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.

### Can I use this alongside other actives in my routine?

Yes. Glycerin is the lead active here, and it is formulated to sit alongside the rest of a routine rather than replace it. Introduce any new step on its own for the first week or two before adding it next to another strong active, so it is easy to tell which product is responsible for any change. Once it is settled into the routine, it layers the way any other serum in a Korean routine does.

### What does Sodium Hyaluronate do in this formula?

Sodium Hyaluronate is the salt of hyaluronic acid, and it is what most products labelled hyaluronic actually contain. The salt dissolves more readily and the molecule is smaller, so it sits in the outer layer of skin rather than only on top of it. It is named on this product's own ingredient panel.

### 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.

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Page: https://korean-pharmacy.com/products/numbuzin-no-6-deep-sleep-mask-serum-50ml