All scans / Serums / COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518
COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 ingredients: is it worth it?
A competent hydrating serum with real brightening support, but the peptide-and-bakuchiol hype outruns the likely treatment strength.
A competent hydrating serum with real brightening support, but the peptide-and-bakuchiol hype outruns the likely treatment strength.
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The efficacy score is 4.2/5: water, glycols, glycerin, betaine, niacinamide at position 5, and multiple hyaluronic-acid forms provide a credible hydration base, while niacinamide can support brightening and barrier function. Bakuchiol and copper tripeptide-1 appear after the main base and are not disclosed at meaningful percentages, so their anti-aging contribution cannot be assumed to be strong; the numerous peptides and collagen are supportive marketing/formulation features rather than reliable reasons to award a high score. No product pH or packaging information was provided, and the presence of alcohol adds a formulation caveat without automatically making the serum unsafe.
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DemythSkin rates COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 4.2/5 for efficacy and 4.3/5 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 (14)⌄
FULL INGREDIENT LIST⌄
Water, Butylene glycol, Glycerin, Dipropylene glycol, Niacinamide, 1,2-hexanediol, Betaine, Diethoxyethyl succinate, Ammonium acryloyldimethyltaurate/vp copolymer, Dimethicone, Copper tripeptide-1, Polyglyceryl-6 caprylate, Polyglyceryl-4 caprate, Bakuchiol, Hydrogenated lecithin, Alcohol, Sodium methyl stearoyl taurate, Ethylhexylglycerin, Hydroxypropyl starch phosphate, Disodium edta, Adenosine, Caprylyl glycol, Tocopherol, Dipeptide diaminobutyroyl benzylamide diacetate, Acetyl hexapeptide-1, Acetyl heptapeptide-4, Panthenol, Inositol, Acetyl hexapeptide-8, Sodium hydroxide, Propanediol, Beta-glucan, Sodium hyaluronate, Hyaluronic acid, Sodium hyaluronate crosspolymer, Hydrolyzed collagen, Hydrolyzed hyaluronic acid, Sodium acetylated hyaluronate, Acetyl octapeptide-3 Sources & References Glycerol and the skin: holistic approach to its origin and functions Niacinamide - mechanisms of action and its topical use in dermatology Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88
WHAT EACH INGREDIENT DOES (24)⌄
- Water
- Primary solvent
- Butylene glycol
- Humectant and solvent
- Glycerin
- Humectant
- Dipropylene glycol
- Solvent and humectant
- Niacinamide
- Multifunctional skin active
- 1,2-hexanediol
- Solvent and preservative booster
- Betaine
- Humectant and osmolyte
- Diethoxyethyl succinate
- Light emollient and solvent
- Ammonium acryloyldimethyltaurate/vp copolymer
- Viscosity and texture modifier
- Dimethicone
- Silicone emollient and protectant
- Copper tripeptide-1
- Peptide skin-conditioning agent
- Polyglyceryl-6 caprylate
- Emulsifier and solubilizer
- Polyglyceryl-4 caprate
- Emulsifier and solubilizer
- Bakuchiol
- Retinoid-alternative active
- Hydrogenated lecithin
- Emulsifier and skin conditioner
- Alcohol
- Solvent
- Sodium methyl stearoyl taurate
- Emulsifier and surfactant
- Ethylhexylglycerin
- Preservative booster and conditioner
- Hydroxypropyl starch phosphate
- Thickener and stabilizer
- Disodium edta
- Chelating agent
- Adenosine
- Skin-conditioning active
- Caprylyl glycol
- Humectant and preservative booster
- Tocopherol
- Antioxidant and skin conditioner
- Dipeptide diaminobutyroyl benzylamide diacetate
- Peptide skin-conditioning agent
EXTERNAL CITATIONS
Niacinamide: Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88.
Glycerin: Glycerol and the skin: holistic approach to its origin and functions.
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 (anti-aging) that scores at least as high on both efficacy and safety.

COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518: common questions
Is COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 worth it?
COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 scores 4.2 out of 5.0 for efficacy (Effective) and 4.3 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. A competent hydrating serum with real brightening support, but the peptide-and-bakuchiol hype outruns the likely treatment strength.
What are the key active ingredients in COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518?
COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518. It scores 4.3 out of 5.0 for safety.
How is COSRX The Blue Peptide Bakuchiol Plump Glow Serum 518 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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