All scans / Serums / Clé de Peau Beauté The Serum

[ DEMYTHSKIN_SCORE · 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.

[ SCAN_RESULT ]
Clé de Peau Beauté The Serum
— Clé
de Peau Beauté The Serum
Hydration
Does it work?
3.8/ 5.0
Modest
Is it safe?
2.8/ 5.0
Irritating
THE VERDICT

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.

GRADED AS SERUM — HYDRATION
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

◄ DRIVES RESULTSWORKS AGAINST YOU ►
Doing the work · 17 ingredients
S

Gold Standards

High clinical proof | Skin-transformative
None detected
A

Reliable

Proven results
BetaineGlycerinTrehaloseErythritolAllantoinSodium Acetylated HyaluronateCentaurea Cyanus Flower ExtractGlycineInositolTocopherol
B

Potent

Developing evidence
PEG/PPG-14/7 Dimethyl EtherTheaninePPG-13-Decyltetradeceth-24FructoseDipotassium GlycyrrhizateTremella Fuciformis PolysaccharidePanax Ginseng Root Extract
Not doing the work · 19 ingredients
C

Overhyped | Marketing

Hype | Limited data
Lilium Candidum Bulb ExtractAngelica Acutiloba Root ExtractEucheuma Serra/Grateloupia Sparsa/Saccharina Angustata/Ulva Linza/Undaria Pinnatifida ExtractHydrolyzed SilkSaccharina Angustata/Undaria Pinnatifida ExtractRosa Canina Fruit ExtractFagus Sylvatica Bud ExtractPerilla Ocymoides Leaf ExtractHydrolyzed Conchiolin ProteinPotentilla Erecta Root ExtractBupleurum Falcatum Root Extract
D

Documented Irritants

Evidence-backed flag
Alcohol Denat.Fragrance (Parfum)Hexyl CinnamalCitronellolAlpha-Isomethyl IononeLimoneneLinaloolGeraniol
FORMULATION BASE (10)⌄
Water (Aqua/Eau)Butylene GlycolDipropylene GlycolPhenoxyethanolCarbomerSodium CitrateCitric AcidXanthan GumDisodium EDTAPotassium Hydroxide
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.

[ 01 · FAQ ]

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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