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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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numbuzin No.6 Deep Sleep Mask Serum

Mask

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Check against official records

KR South Korea (MFDS)

1 ingredient with Korea limits or conditions.

Tocopherol
EU European Union (CosIng)

No prohibited or restricted ingredients found in EU records.

US United States (FDA)

No prohibited or restricted ingredients found in U.S. records.

#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 Water ———
2 Butylene Glycol ———
3 Propanediol ———
4 Glycerin ———
5 Niacinamide ———
6 1,2-Hexanediol ———
7 Water ———
8 Glycereth-26 ———
9 Panthenol ———
10 Pentylene Glycol ———
11 Glucose ———
12 Chlorella Vulgaris Extract ———
13 Xylitylglucoside ———
14 Sodium PCA ———
15 Anhydroxylitol ———
16 Fructooligosaccharides ———
17 Fructose ———
18 Sodium Hyaluronate ———
19 Hydrolyzed Hyaluronic Acid ———
20 Polyglyceryl-10 Laurate ———
21 Xylitol ———
22 Xanthan Gum ———
23 Sodium Citrate ———
24 Dipotassium Glycyrrhizate ———
25 Sodium Hyaluronate Crosspolymer ———
26 Ethylhexylglycerin ———
27 Adenosine ———
28 Hydrolyzed Glycosaminoglycans ———
29 Citric Acid —Approved preservative · 0,2% · 0,0024% —
30 Benzyl Glycol ———
31 Melia Azadirachta Leaf Extract ———
32 Melia Azadirachta Flower Extract ———
33 Coccinia Indica Fruit Extract ———
34 Aloe Barbadensis Flower Extract ———
35 Solanum Melongena (Eggplant) Fruit Extract ———
36 Ocimum Sanctum Leaf Extract ———
37 Corallina Officinalis Extract ———
38 Curcuma Longa (Turmeric) Root Extract ———
39 Hyaluronic Acid ———
40 Tocopherol Restricted · 20% ——

“—” means no specific record for that ingredient in that jurisdiction's lists — it is not an approval. Restricted ingredients are allowed within limits (concentration, product type, label warnings); a product listing one is not necessarily over the limit. How we check.

Ingredient list from numbuzin official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.

Fragrance allergens (EU labelling)

None of the fragrance allergens the EU requires to be labelled appear in this ingredient list.

Source: EU Cosmetics Regulation Annex III as amended by Regulation (EU) 2023/1545 — the list grew from 26 to over 80 entries; it applies to new products from 31 July 2026 and to all products from 31 July 2028. Shown for information; it is not a sign that a product is unsafe.

Storage & heat

Official storage statements

“Keep out of direct sunlight. Keep out of reach of children.” — Common precautions required on all cosmetics in Korea (Cosmetics Act Enforcement Rule, Annex 3)

Our note — heat, light & air

This formula lists ingredients that are known to break down faster in heat, light or air:

Other markets

Ingredients in this formula that are prohibited or limited in other markets, from the overseas regulation database compiled by Korea's MFDS. Limited means allowed within conditions.

MarketProhibitedLimited
CN China None found —
AS ASEAN (10 countries) None found —
JP Japan None found Dipotassium Glycyrrhizate, Panthenol
TW Taiwan None found Citric Acid
CA Canada None found Citric Acid, Glycerin, Sodium Citrate
BR Brazil None found Citric Acid
AR Argentina None found Citric Acid

Similar ingredient lists

Products from other brands whose ingredient lists overlap most with this one. The score weighs the first ingredients most (labels list them roughly by amount), skips ingredients found in most products, and counts UV filters and less common ingredients more. Similar ingredient lists (not a test of how they work) — amounts, texture and results can differ.

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SKIN1004 Hyalu-Cica Hydrating Mask Mask · $3.00
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Round Lab Birch Moisturizing Toner Pad Mask · $23.80
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Medicube Collagen Night Wrapping Mask Mask
26% similar · Shares 11 of this product's first 20 ingredients, including Chlorella Vulgaris Extract, Fructose and Fructooligosaccharides.
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Abib Mild acidic pH sheet mask Jericho rose fit(10 sheets) Mask · $39.28
26% similar · Shares 14 of this product's first 20 ingredients, including Chlorella Vulgaris Extract, Fructose and Fructooligosaccharides.
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Centellian24 Madeca Cream Mist 120ml Toner · $18.00
26% similar · Shares 14 of this product's first 20 ingredients, including Chlorella Vulgaris Extract, Fructose and Glucose.
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Based on the listed ingredients only; recalculated weekly. Not a judgment of which product is better, safer or the same.

Recalls & alerts for numbuzin

Compare with

numbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.1 Pantothenic B5 Hyaluronic Active Clear Mask (4 Sheets)numbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.9 NAD+ BIO Lifting-sil Full Face Masknumbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.1 Easy Peasy Cleansing Oilnumbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.2 Deep Clean Fresh Cream Cleansing Foamnumbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.3 Rice Enzyme Skin Softening Cleansing Foamnumbuzin vs numbuzinNo.6 Deep Sleep Mask Serum vs No.5+ Glutathione Vitamin Facial Spa Cleanser

Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.

Frequently asked questions

Is numbuzin No.6 Deep Sleep Mask Serum allowed in the European Union?

We found no prohibited or restricted ingredients in the EU's CosIng records for its listed ingredients. This is a records check, not an approval.

Is numbuzin No.6 Deep Sleep Mask Serum allowed in South Korea?

We found no prohibited ingredients. 1 ingredient has limits or conditions in Korea's MFDS records (Tocopherol). That usually means a maximum amount, a product type or a label warning — not a ban.

Is numbuzin No.6 Deep Sleep Mask Serum allowed in the United States?

We found no prohibited or restricted ingredients in the FDA's records for its listed ingredients. This is a records check, not an approval.

Does numbuzin No.6 Deep Sleep Mask Serum contain fragrance allergens?

None of the fragrance allergens the EU requires to be labelled appear in its ingredient list.

What are the main ingredients in numbuzin No.6 Deep Sleep Mask Serum?

Ingredient lists are in descending order of amount down to about 1%. The first five listed are: Water, Butylene Glycol, Propanediol, Glycerin, Niacinamide. In total 40 ingredients are listed.

Has numbuzin had any recalls or official alerts?

Yes — we have 1 official record linked to the brand or this product. The latest is from April 2026 (US). See the list on this page for each source.

Where does this ingredient list come from?

From numbuzin official store on October 17, 2026. We re-read it every week and keep earlier versions if the formula changes.

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
Reading time:
Views: 0
Claude: 1 ChatGPT: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
Claude1
ChatGPT0
Google · Gemini0
Perplexity0
Meta AI0
Amazon0
Others0

Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →