numbuzin No.5 Glutathione C Vitamin Boosting Essential Toner
Ingredients and claims, checked
Last checked September 7, 2026
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What is it like at a glance?
What is this product?
- Key ingredients
- Niacinamide, 3-O-Ethyl Ascorbic Acid, Adenosine
- When
- Morning and evening
A toner made with niacinamide and glutathione together. It also contains ceramides. It comes in a 200 ml size.
Who is it for?
Good for
- Dehydrated oily skin
- People avoiding fragrance
Less suited to
- Very dry skin that needs a heavy, sealing moisturizer
What's good?
Good points
- Madecassoside calms the skin
How do you use it?
- Where in your routine
- First leave-on step after cleansing, a brightening multi-active toner with no exfoliating chemistry in it
- Pairs well with
- A daily sunscreen in the morning
- A moisturizer carrying occlusive lipids as the last step
- Don't combine with
- Stacking a separate high-dose direct vitamin C serum in the same routine on reactive skin
What is in it?
The full ingredient list as the brand publishes it, in the printed order. Tap a name to read about that ingredient.
This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.
Key ingredient
- Water
- Dipropylene Glycol
- Glycerin
- Niacinamide
- 1,2-Hexanediol
- Butylene Glycol
- Polyglycerin-3
- Hippophae Rhamnoides Water
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Tromethamine
- Erythritol
- Pentylene Glycol
- 3-O-Ethyl Ascorbic Acid
- Ethylhexylglycerin
- Polyglyceryl-4 Caprate
- Adenosine
- Glutathione
- Hydrogenated Lecithin
- Disodium EDTA
- Madecassoside
- Coptis Japonica Root Extract
- Decyl Glucoside
- Caprylyl Glycol
- Ceramide NP
- Ascorbic Acid
- Bisabolol
- Panthenol
- Tocopherol
- Arbutin
- Acetyl Hexapeptide-8
- Hexapeptide-9
- Nonapeptide-1
- Palmitoyl Pentapeptide-4
- Palmitoyl Tripeptide-1
- Palmitoyl Tetrapeptide-7
Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.
Claims
See the claim, checked
Claims, checked
After cleansing, wet a cotton pad with an appropriate amount and wipe from the inside to the outside along the skin texture of the face, or dispense into hands and allow it to absorb into the skin.
nothing specific to check
We quote each claim exactly as the brand published it, then check it against the ingredient list and the brand's own documents.
What else is worth seeing?
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