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numbuzin No.5 Goodbye Blemish Serum ingredients: is it worth it?
This is a solid hydrating, mildly brightening serum with decent blemish-support, but its essential oil fragrance and scattered vitamin C derivatives keep it from being a top-tier treatment.
This is a solid hydrating, mildly brightening serum with decent blemish-support, but its essential oil fragrance and scattered vitamin C derivatives keep it from being a top-tier treatment.
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Efficacy is driven mainly by mid-list niacinamide, multiple humectants, soothing agents like panthenol and allantoin, and some supporting brightening/antioxidant botanicals, while the three vitamin C forms appear low enough in the list that their concentration is likely modest and not at clinically strong levels; overall you get helpful hydration and tone support rather than a powerhouse anti-acne or pigment-correcting treatment.
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DemythSkin rates numbuzin No.5 Goodbye Blemish Serum 3.8/5 for efficacy and 3.9/5 for safety.
CONTAINS COMMON SENSITISERS⌄
Fragrance components and essential oils that more often cause reactions in sensitive skin: Citrus Limon (Lemon) Peel Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Limonene, Citral. Most people tolerate them; patch test if your skin reacts easily.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (9)⌄
FULL INGREDIENT LIST⌄
Water, Butylene Glycol, Methyl Gluceth-20, Dipropylene Glycol, Glycerin, 1,2-Hexanediol, Niacinamide, Hippophae Rhamnoides Extract, Glycereth-26, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyglyceryl-10 Laurate, Allantoin, Carbomer, Tromethamine, Panthenol, Dipotassium Glycyrrhizate, Disodium EDTA, Sodium Hyaluronate, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Melia Azadirachta Leaf Extract, Citrus Limon (Lemon) Peel Oil, Curcuma Longa (Turmeric) Root Extract, Corallina Officinalis Extract, Hydrolyzed Jojoba Esters, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Aurantifolia (Lime) Oil, Ascorbyl Glucoside, Ascorbic Acid, Glycyrrhiza Glabra (Licorice) Root Extract, 3-O-Ethyl Ascorbic Acid, Centella Asiatica Extract, Camellia Sinensis Leaf Extract, Polygonum Cuspidatum Root Extract, Scutellaria Baicalensis Root Extract, Chamomilla Recutita (Matricaria) Flower Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Limonene, Citral
WHAT EACH INGREDIENT DOES (24)⌄
- Water
- Solvent base
- Butylene Glycol
- Humectant and solvent
- Methyl Gluceth-20
- Humectant, skin conditioning
- Dipropylene Glycol
- Solvent, texture aid
- Glycerin
- Core humectant
- 1,2-Hexanediol
- Solvent, preservative booster
- Niacinamide
- Multifunctional brightening active
- Hippophae Rhamnoides Extract
- Plant extract, antioxidant
- Glycereth-26
- Humectant, slip enhancer
- Ammonium Acryloyldimethyltaurate/VP Copolymer
- Film-forming thickener
- Polyglyceryl-10 Laurate
- Emulsifier, surfactant
- Allantoin
- Soothing skin protectant
- Carbomer
- Gelling agent, thickener
- Tromethamine
- pH adjuster, neutralizer
- Panthenol
- Humectant, soothing agent
- Dipotassium Glycyrrhizate
- Soothing licorice-derived agent
- Disodium EDTA
- Chelator for stability
- Sodium Hyaluronate
- Hyaluronic acid humectant
- Melia Azadirachta Flower Extract
- Botanical extract, antioxidant
- Ocimum Sanctum Leaf Extract
- Botanical extract, soothing
- Melia Azadirachta Leaf Extract
- Botanical extract, antioxidant
- Citrus Limon (Lemon) Peel Oil
- Fragrant essential oil
- Curcuma Longa (Turmeric) Root Extract
- Botanical extract, antioxidant
- Corallina Officinalis Extract
- Marine-derived antioxidant extract
EXTERNAL CITATIONS
Niacinamide: Kim et al., 2005, demonstrated that topical niacinamide (4%) improves hyperpigmentation and skin barrier function in human studies.
3-O-Ethyl Ascorbic Acid: Li et al., 2018, reviewed 3-O-ethyl ascorbic acid as a more stable vitamin C derivative with skin-brightening and antioxidant potential.
Glycyrrhiza Glabra (Licorice) Root Extract: Fu et al., 2010, reported that glabridin from licorice exhibits melanogenesis-inhibiting and anti-inflammatory effects in vitro and in vivo.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
A cheaper serum that scores as high or higher
A different formula for the same concern (brightening) that scores at least as high on both efficacy and safety.
numbuzin No.5 Goodbye Blemish Serum: common questions
Is numbuzin No.5 Goodbye Blemish Serum worth it?
numbuzin No.5 Goodbye Blemish Serum scores 3.8 out of 5.0 for efficacy (Modest) and 3.9 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. This is a solid hydrating, mildly brightening serum with decent blemish-support, but its essential oil fragrance and scattered vitamin C derivatives keep it from being a top-tier treatment.
What are the key active ingredients in numbuzin No.5 Goodbye Blemish Serum?
numbuzin No.5 Goodbye Blemish Serum contains these gold-standard actives with strong clinical evidence: Ascorbic Acid.
Does numbuzin No.5 Goodbye Blemish Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in numbuzin No.5 Goodbye Blemish Serum as documented irritants: Citrus Limon (Lemon) Peel Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Aurantifolia (Lime) Oil, Limonene, Citral.
How is numbuzin No.5 Goodbye Blemish 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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