All scans / Serums / Clé de Peau Beauté The Serum
Clé de Peau Beauté The Serum ingredients: is it worth it?
Luxury branding, a hydration-heavy base, and a lot of fragrance—not a serious anti-aging serum.

Luxury branding, a hydration-heavy base, and a lot of fragrance—not a serious anti-aging serum.
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The efficacy score is 3.8/5: glycerin, betaine, sugars, acetylated hyaluronate, allantoin, and dipotassium glycyrrhizate can support short-term hydration and soothing, but no retinoid, vitamin C, niacinamide, exfoliating acid, or other high-evidence treatment active appears. The marketed kelp complex and botanical blend are positioned late, so concentration and clinical impact are uncertain; denatured alcohol is third and fragrance is prominent, weakening the formulation’s tolerance profile.
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DemythSkin rates Clé de Peau Beauté The Serum 3.8/5 for efficacy and 2.8/5 for safety.
CONTAINS COMMON SENSITISERS⌄
Fragrance components and essential oils that more often cause reactions in sensitive skin: Fragrance (Parfum), Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone, Limonene, Linalool, Geraniol. 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 (10)⌄
FULL INGREDIENT LIST⌄
Water (Aqua/Eau), Butylene Glycol, Alcohol Denat., Dipropylene Glycol, PEG/PPG-14/7 Dimethyl Ether, Betaine, Glycerin, Trehalose, Phenoxyethanol, Carbomer, Sodium Citrate, Theanine, PPG-13-Decyltetradeceth-24, Citric Acid, Erythritol, Fructose, Xanthan Gum, Dipotassium Glycyrrhizate, Allantoin, Fragrance (Parfum), Disodium EDTA, Sodium Acetylated Hyaluronate, Tremella Fuciformis Polysaccharide, Potassium Hydroxide, Lilium Candidum Bulb Extract, Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone, Angelica Acutiloba Root Extract, Centaurea Cyanus Flower Extract, Limonene, Linalool, Eucheuma Serra/Grateloupia Sparsa/Saccharina Angustata/Ulva Linza/Undaria Pinnatifida Extract, Panax Ginseng Root Extract, Geraniol, Hydrolyzed Silk, Glycine, Inositol, Saccharina Angustata/Undaria Pinnatifida Extract, Rosa Canina Fruit Extract, Fagus Sylvatica Bud Extract, Perilla Ocymoides Leaf Extract, Tocopherol, Hydrolyzed Conchiolin Protein, Potentilla Erecta Root Extract, Bupleurum Falcatum Root Extract
WHAT EACH INGREDIENT DOES (24)⌄
- Water (Aqua/Eau)
- Formula solvent
- Butylene Glycol
- Humectant and solvent
- Alcohol Denat.
- Volatile solvent
- Dipropylene Glycol
- Solvent and humectant
- PEG/PPG-14/7 Dimethyl Ether
- Solubilizer and skin conditioner
- Betaine
- Humectant and osmolyte
- Glycerin
- Humectant
- Trehalose
- Moisture-binding sugar
- Phenoxyethanol
- Preservative
- Carbomer
- Gel-forming thickener
- Sodium Citrate
- Buffering agent
- Theanine
- Amino acid conditioner
- PPG-13-Decyltetradeceth-24
- Solubilizer and emulsifier
- Citric Acid
- pH adjuster
- Erythritol
- Humectant and osmolyte
- Fructose
- Humectant sugar
- Xanthan Gum
- Viscosity modifier
- Dipotassium Glycyrrhizate
- Soothing licorice derivative
- Allantoin
- Soothing skin protectant
- Fragrance (Parfum)
- Fragrance component
- Disodium EDTA
- Chelating agent
- Sodium Acetylated Hyaluronate
- Humectant skin conditioner
- Tremella Fuciformis Polysaccharide
- Film-forming humectant
- Potassium Hydroxide
- pH adjuster
EXTERNAL CITATIONS
Glycerin: Humectant with established skin-hydration function
Sodium Acetylated Hyaluronate: Hyaluronate derivative used as a humectant and skin conditioner
Allantoin: Established soothing and skin-protective ingredient
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
Clé de Peau Beauté The Serum: common questions
Is Clé de Peau Beauté The Serum worth it?
Clé de Peau Beauté The Serum scores 3.8 out of 5.0 for efficacy (Modest) and 2.8 out of 5.0 for safety (Irritating) on DemythSkin's independent ingredient analysis. Luxury branding, a hydration-heavy base, and a lot of fragrance—not a serious anti-aging serum.
What are the key active ingredients in Clé de Peau Beauté The Serum?
Clé de Peau Beauté The Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does Clé de Peau Beauté The Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in Clé de Peau Beauté The Serum as documented irritants: Alcohol Denat., Fragrance (Parfum), Hexyl Cinnamal, Citronellol, Alpha-Isomethyl Ionone, Limonene, Linalool, Geraniol. This product does contain fragrance.
How is Clé de Peau Beauté The 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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