numbuzin No.5 Glutathione C Mark Ampoule
Ingredients and claims, checked
Last checked September 8, 2026
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What is it like at a glance?
What is this product?
It's an ampoule.
- Key ingredients
- Niacinamide 5%, Panthenol 5%, Tranexamic Acid 4%
- When
- Morning and evening
Who is it for?
Less suited to
- Sensitive skin
What's good, and what to watch for?
Good points
- Contains Niacinamide 5%, Panthenol 5%
- Panthenol adds moisture
Watch-outs
- Glutathione, the namesake ingredient, is included in a small amount near the end of the list
- If you clog easily: Butyrospermum Parkii (Shea) Butter
- If you get fungal acne: Bifida Ferment Lysate
How do you use it?
- Pairs well with
- A daily broad-spectrum sunscreen
- A plain barrier moisturiser over the top
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 ingredientWorth a closer look
- Water
- Butylene Glycol
- Niacinamide
- Panthenol
- Tranexamic Acid
- 1,2-Hexanediol
- Neopentyl Glycol Dicaprate
- Caprylic/Capric Triglyceride
- Sorbitol
- Vaccinium Vitis-Idaea Fruit Extract
- Chondrus Crispus Extract
- Butyrospermum Parkii (Shea) Butter
- Saccharum Officinarum (Sugarcane) Extract
- Alpha-Arbutin
- Bifida Ferment Lysate
- 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-O-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
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 each claim, checked (3)
Claims, checked
Niacinamide (50,000 ppm)
backed by evidenceNo. 5 Whitening/Blemish
plausible, not tested[Blemish Whitening]
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?
Products we read alongside this one.
Which articles cover it?
Articles on this site that write about this product.