Brightening Serum Supreme
The Clé de Peau Beauté Brightening Serum Supreme is a serums, essence, ampoule. Our analysis of its 70 ingredients (47 low-risk) rates it Excellent (93/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Clé de Peau Beauté Brightening Serum Supreme is a serums, essence, ampoule. Our analysis of its 70 ingredients (47 low-risk) rates it Excellent (93/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
Summarised from our ingredient analysis — not brand marketing copy.
The evidence
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
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Water
(Solvent) |
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Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling) |
Bad for Dry Skin
Bad for Sensitive Skin
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Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling) |
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Pentaerythrityl Tetraethylhexanoate
(Binding Agent, Skin Conditioning Agent Occlusive, Viscosity Increasing Agent, Emollient, Viscosity Controlling) |
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Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning) |
Silicone
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Potassium Methoxysalicylate
(Bleaching) |
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Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent) |
Good for Dry Skin
Fungal Acne Trigger
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Behenyl Alcohol
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Emollient, Viscosity Controlling) |
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Petrolatum
(Hair Conditioning, Skin Conditioning Agent Occlusive, Skin Protecting, Emollient, Moisturising, Uv Absorber) |
Bad for Oily Skin
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Hydrogenated Polydecene
(Fragrance, Hair Conditioning, Skin Conditioning, Emollient, Solvent) |
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Phytosteryl Macadamiate
(Hair Conditioning, Skin Conditioning) |
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Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling) |
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Diglycerin
(Humectant, Skin Conditioning, Solvent) |
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Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling) |
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PEG/PPG-14/7 Dimethyl Ether
(Skin Conditioning) |
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Hydrogenated Polyisobutene
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Viscosity Controlling) |
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Beheneth-20
(Emulsifying, Surfactant) |
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Mica
(Cosmetic Colorant, Opacifying) |
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Batyl Alcohol
(Emulsion Stabilising, Emollient, Skin Conditioning) |
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Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling) |
Good for Dry Skin
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Maltitol
(Flavoring Agent, Humectant, Masking, Moisturising, Skin Conditioning) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
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CI 77891
(Colorant) |
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Theanine
(Emollient, Humectant, Skin Conditioning) |
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Polyvinyl Alcohol
(Binding Agent, Film Forming, Viscosity Increasing Agent, Viscosity Controlling) |
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Trehalose
(Flavoring Agent, Humectant, Moisturising) |
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Tocopheryl Acetate
(Antioxidant, Skin Conditioning) |
Bad for Oily Skin
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Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling) |
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Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking) |
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PARFUM
(Fragrance, Perfuming) |
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Potassium Hydroxide
(Ph Adjuster, Buffering Agent) |
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Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant) |
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Saccharomyces Ferment Lysate Filtrate
(Skin Conditioning) |
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Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking) |
Bad for Sensitive Skin
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Sodium Metaphosphate
(Buffering Agent, Chelating Agent, Oral Care Agent) |
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Disodium EDTA
(Chelating Agent, Viscosity Controlling) |
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Hexyl Cinnamal
(Fragrance, Masking) |
Allergens
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Sodium Metabisulfite
(Antioxidant, Preservative, Reducing) |
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Citronellol
(Fragrance, Masking) |
Allergens
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Alpha-Isomethyl Ionone
(Perfuming, Skin Conditioning) |
Allergens
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
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Lilium Candidum Bulb Extract
(Skin Conditioning) |
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Geraniol
(Fragrance, Masking, Tonic) |
Allergens
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Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking) |
Allergens
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TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning) |
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Angelica Acutiloba Root Extract
(Skin Conditioning) |
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olea europaea leaf extract
(Perfuming, Skin Conditioning) |
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Iris Florentina Root Extract
(Masking, Tonic) |
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Glucosamine HCl
(Ph Adjuster, Antistatic Agent, Hair Conditioning) |
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Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning) |
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Rubus Suavissimus Leaf Extract
(Skin Conditioning) |
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Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber) |
Good for Oily Skin
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Inositol
(Antistatic Agent, Hair Conditioning, Humectant) |
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2-O-Ethyl Ascorbic Acid
(Skin Conditioning) |
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Rehmannia Chinensis Root Extract
(Skin Conditioning, Tonic) |
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Artemisia Princeps Leaf Extract
(Skin Conditioning) |
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Isostearic Acid
(Binding Agent, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Isostearic Acid., Binding, Emulsifying) |
Fungal Acne Trigger
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Uncaria Gambir Extract
(Astringent) |
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Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant) |
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Pyrola Incarnata Extract
(Skin Conditioning) |
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Potentilla Erecta Root Extract
(Skin Conditioning) |
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Alteromonas Ferment Extract
(Skin Conditioning) |
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rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning) |
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Bupleurum Falcatum Root Extract
(Skin Conditioning) |
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Lauryl Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent) |
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Sodium Acetylated Hyaluronate
(Humectant) |
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Perilla Ocymoides Leaf Extract
(Tonic) |
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Hydrolyzed Conchiolin Protein
(Hair Conditioning, Skin Conditioning) |
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Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking) |
No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.
EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →
How to use
General guidance from this product's category and active ingredients — always follow the directions on the package.
Trust & honesty
The concentrations these actives are typically effective at in research — not a measurement of this product.
L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.
2-O-Ethyl Ascorbic Acid
INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.
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