COSRX
The Vitamin C 13 Serum20 ml
Potent. Vitamin C: ingredient no. 1, not counting water.Little to note
Fragrance-free
from€16.00
€80.00 / 100 ml
BuyAffiliate link
Loading…
No.6 Deep Sleep Mask Serum
Little to note
- Fragrance-free
- No drying alcohol
- Silicone-free
Buy from a trusted store
- CP
CocopandaCheapest
Updated 2026-08-12
Shop at CocopandaAffiliate link€26.90
€53.80 / 100 ml
- LY
Lyko
Out of stock
Out of stock€35.90
€71.80 / 100 ml
Prices come from Finnish online stores and are shown in euros. Cocopanda delivers only within mainland Finland; Lyko's delivery terms also list Sweden, Norway, Denmark, Poland, the Netherlands, Austria, and Germany. Neither delivers to the US or the UK.
numbuzin No.6 Deep Sleep Mask Serum is a serum (50 ml). The product is Korean. The ingredient list has 40 ingredients, including niacinamide, hyaluronic acid, and panthenol (B5). The product is fragrance-free and silicone-free. The product contains no drying alcohol. We compare prices at 2 retailers; the cheapest right now is €26.90.
- Product type
- Serum
- Size
- 50 ml
- Origin
- Korea
Source: store product page · Updated 2026-08-12
Ingredient analysis
Does not contain ingredients flagged by our current criteria. Key ingredient: Niacinamide.
Flagged ingredient groups
No flagged ingredients
Key ingredients
A form of vitamin B3. Studied in relation to perceived oiliness and evenness of tone.
A humectant that binds water.
A humectant often used in formulations for sensitive skin.
Licorice root extracts and compounds isolated from them, such as glycyrrhizin salts and glabridin. Used in formulations for sensitive skin and in products aimed at evenness of tone.
Skin types
- Oily
- Combination
- Dry
- Normal
Related concerns
Confidence: medium · v2026.09.3
This assessment is read from the ingredient list and is not medical advice. It makes no promise about acne. Individual skin reactions vary.
Read how we classify productsFull ingredient list
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29Fructose
- 30
- 31
- 32
- 33
- 34
- 35
- 36Hydrolyzed Glycosaminoglycans
- 37
- 38
- 39
- 40
The order is the manufacturer's own and follows concentration down to the one percent mark. Underlined names are flagged by our criteria. Names with a dotted underline open a short note on what the ingredient does in the formula.
Similar products
Anua
Azelaic Acid 10 Hyaluron Redness Soothing Serum30 ml
Mild. Azelaic acid: ingredient no. 6, not counting water.Little to noteFragrance-freefrom€20.95
€69.83 / 100 ml
BuyAffiliate link
Beauty of Joseon
Hanbang Serum Discovery Kit40 ml
Little to noteFragrance-freefrom€30.00
€75.00 / 100 ml
BuyAffiliate link
numbuzin
No.5+ Glutathione Vitamin Concentrated Serum30 ml
Some things to noteFragrance-freefrom€31.50
€105.00 / 100 ml
BuyAffiliate link