All scans / Serums / Numbuzin No.5 Vitamin Concentrated Serum
Numbuzin No.5 Vitamin Concentrated Serum ingredients: is it worth it?
This is a legitimately high-evidence brightening serum, not just marketing fluff.
This is a legitimately high-evidence brightening serum, not just marketing fluff.
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The efficacy score is driven by niacinamide placed very high in the INCI, plus tranexamic acid and alpha-arbutin in early-mid positions for real pigmentation control, supported by a stable vitamin C derivative (3-O-ethyl ascorbic acid) and multiple humectants and soothing agents; glutathione is mostly marketing, but the core actives and their positions indicate meaningful concentrations for tone evening.
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DemythSkin rates Numbuzin No.5 Vitamin Concentrated Serum 4.5/5 for efficacy and 4.6/5 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 (7)⌄
FULL INGREDIENT LIST⌄
Vaccinium Vitis-Idaea Fruit Extract, Butylene Glycol, Niacinamide, Panthenol, Tranexamic Acid, Water, 1,2-Hexanediol, Neopentyl Glycol Dicaprate, Caprylic/Capric Triglyceride, Sorbitol, Bifida Ferment Lysate, Chondrus Crispus Extract, Butyrospermum Parkii (Shea) Butter, Saccharum Officinarum (Sugarcane) Extract, Alpha-Arbutin, 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, Glutathione, Tocopherol, Ethylhexylglycerin, Adenosine, Disodium EDTA
WHAT EACH INGREDIENT DOES (24)⌄
- Vaccinium Vitis-Idaea Fruit Extract
- Antioxidant, supportive brightening
- Butylene Glycol
- Solvent and humectant
- Niacinamide
- Tone evening, barrier support
- Panthenol
- Soothing and barrier repair
- Tranexamic Acid
- Pigmentation modulation, brightening
- Water
- Solvent base
- 1,2-Hexanediol
- Solvent, antimicrobial preservative booster
- Neopentyl Glycol Dicaprate
- Emollient texture enhancer
- Caprylic/Capric Triglyceride
- Light emollient, reduces TEWL
- Sorbitol
- Humectant and texture aid
- Bifida Ferment Lysate
- Probiotic-derived soothing active
- Chondrus Crispus Extract
- Film-forming, hydration support
- Butyrospermum Parkii (Shea) Butter
- Rich emollient, occlusive
- Saccharum Officinarum (Sugarcane) Extract
- Humectant, minor exfoliation potential
- Alpha-Arbutin
- Melanin inhibition, brightening
- Sodium Hyaluronate
- Humectant, hydration
- Melia Azadirachta Flower Extract
- Botanical antioxidant, soothing
- Ocimum Sanctum Leaf Extract
- Botanical antioxidant, anti-inflammatory
- Melia Azadirachta Leaf Extract
- Botanical antioxidant, anti-inflammatory
- Curcuma Longa (Turmeric) Root Extract
- Antioxidant, possible brightening
- Corallina Officinalis Extract
- Mineral-rich soothing extract
- Tremella Fuciformis (Mushroom) Extract
- Humectant, film-forming
- Pentylene Glycol
- Humectant and solvent
- Glycerin
- Core humectant, hydration
EXTERNAL CITATIONS
Niacinamide: Topical niacinamide (4–5%) has multiple clinical trials showing improvement in hyperpigmentation, sallowness, and barrier function compared to placebo.
Tranexamic Acid: Topical tranexamic acid (2–5%) has been shown in clinical studies to reduce melasma and UV-induced hyperpigmentation via plasmin inhibition.
Alpha-Arbutin: Alpha-arbutin inhibits tyrosinase and has human data supporting reduction of UV-induced pigmentation at 1–2% concentrations.
3-O-Ethyl Ascorbic Acid: This stable vitamin C derivative shows melanin reduction and antioxidative effects in in-vitro and limited in-vivo studies, with better stability than L-ascorbic acid.
Panthenol: Panthenol improves stratum corneum hydration and supports barrier recovery in irritated skin in controlled studies.
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 Vitamin Concentrated Serum: common questions
Is Numbuzin No.5 Vitamin Concentrated Serum worth it?
Numbuzin No.5 Vitamin Concentrated Serum scores 4.5 out of 5.0 for efficacy (Gold Standard) and 4.6 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. This is a legitimately high-evidence brightening serum, not just marketing fluff.
What are the key active ingredients in Numbuzin No.5 Vitamin Concentrated Serum?
Numbuzin No.5 Vitamin Concentrated Serum contains these gold-standard actives with strong clinical evidence: Tranexamic Acid.
Does Numbuzin No.5 Vitamin Concentrated Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Numbuzin No.5 Vitamin Concentrated Serum. It scores 4.6 out of 5.0 for safety.
How is Numbuzin No.5 Vitamin Concentrated Serum 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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