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numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner ingredients: is it worth it?
A very strong brightening toner on paper, but the glutathione headliner is pure marketing glitter on top of a niacinamide workhorse.
A very strong brightening toner on paper, but the glutathione headliner is pure marketing glitter on top of a niacinamide workhorse.
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The high niacinamide load (around 5%) plus multiple supporting brightening and soothing co-ingredients (tranexamic acid, licorice-derived dipotassium glycyrrhizate, vitamin C forms, panthenol) justify a high efficacy score for tone-evening and barrier-friendly hydration, while the presence of alcohol and a mild lipo-hydroxy acid keeps safety solid but not perfect, especially for more sensitive skin.
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DemythSkin rates numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner 4.3/5 for efficacy and 4.2/5 for safety.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (16)⌄
FULL INGREDIENT LIST⌄
Water, Niacinamide (50,000 ppm), Dipropylene Glycol, Glycerin, Propanediol, Butylene Glycol, Hydroxyethyl Urea, Diethoxy Ethyl Succinate, Hydroxyacetophenone, Caprylyl Glycol, Polyglyceryl-10 Laurate, Betaine, Panthenol (750.1 ppm), Ethylhexylglycerin, Gluconolactone, Sodium Polyacrylate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Sodium Citrate, Citric Acid, Maltodextrin, 1,2 Hexanediol, Gardenia Florida Fruit Extract, Dipotassium Glycyrrhizate, Sodium Hyaluronate, Ascorbic Acid, Pantolactone, Tocopherol, Capryloyl Salicylic Acid, Tranexamic Acid, Tremella Fuciformis (Mushroom) Extract, Caprylic/Capric Triglyceride, Ascorbyl Glucoside, Ubiquinone, Hydrogenated Lecithin, Magnesium Chloride, Alcohol, Glutathione (0.3 ppm), Polysorbate 80, Calcium Gluconate, Pyridoxine HCL, BHT, Yeast Extract, Cyanocobalamin, Disodium EDTA Ingredients subject to change at manufacturer&
WHAT EACH INGREDIENT DOES (24)⌄
- Water
- Solvent base
- Niacinamide (50,000 ppm)
- Brightening and barrier support
- Dipropylene Glycol
- Solvent and texture enhancer
- Glycerin
- Humectant for hydration
- Propanediol
- Solvent and humectant
- Butylene Glycol
- Humectant and penetration aid
- Hydroxyethyl Urea
- Hydrating humectant
- Diethoxy Ethyl Succinate
- Texture and solvent aid
- Hydroxyacetophenone
- Antioxidant and preservative booster
- Caprylyl Glycol
- Emollient and preservative booster
- Polyglyceryl-10 Laurate
- Solubilizer and surfactant
- Betaine
- Osmolyte and humectant
- Panthenol (750.1 ppm)
- Soothing pro-vitamin B5 humectant
- Ethylhexylglycerin
- Preservative booster and emollient
- Gluconolactone
- Polyhydroxy acid and humectant
- Sodium Polyacrylate
- Thickener and stabilizer
- Ammonium Acryloyldimethyltaurate/VP Copolymer
- Rheology modifier and stabilizer
- Sodium Citrate
- pH buffer and chelator
- Citric Acid
- pH adjuster and mild AHA
- Maltodextrin
- Stabilizer and carrier
- 1,2 Hexanediol
- Solvent and preservative component
- Gardenia Florida Fruit Extract
- Botanical extract, likely colorant
- Dipotassium Glycyrrhizate
- Soothing licorice-derived agent
- Sodium Hyaluronate
- Humectant hyaluronic acid salt
EXTERNAL CITATIONS
Niacinamide: Bissett DL et al., Topical niacinamide reduces yellowing, wrinkling, red blotchiness and hyperpigmented spots in aging facial skin, Dermatol Surg. 2004.
Tranexamic Acid: Maeda K, Naganuma M., Topical trans-4-aminomethylcyclohexanecarboxylic acid prevents ultraviolet-B-induced pigmentation, J Photochem Photobiol B. 1998.
Gluconolactone: Green BA et al., Clinical evaluation of gluconolactone, a new polyhydroxy acid, in the treatment of photodamaged skin, Am J Cosmet Surg. 1998.
Panthenol: Proksch E et al., The influence of topically applied D-panthenol on epidermal barrier function and stratum corneum hydration, Results in human skin, Int J Cosmet Sci. 2002.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner: common questions
Is numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner worth it?
numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner scores 4.3 out of 5.0 for efficacy (Effective) and 4.2 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. A very strong brightening toner on paper, but the glutathione headliner is pure marketing glitter on top of a niacinamide workhorse.
What are the key active ingredients in numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner?
numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner contains these gold-standard actives with strong clinical evidence: Ascorbic Acid, Tranexamic Acid.
Does numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner. It scores 4.2 out of 5.0 for safety.
How is numbuzin No.5 Glutathione Vitamin Niacinamide Concentrated Toner scored?
DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.
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