Brightening Serum Supreme

Clé de Peau Beauté

Where to buy Possibly in stock

About this product

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.

Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
70
Low-risk
47
Fragrance
Contains fragrance
Origin
Japan
Data updated
Jun 2026

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 18/8
Good for dry skin
Diglycerin Dipotassium Glycyrrhizate Maltitol Batyl Alcohol Behenyl Alcohol Sodium Acetylated Hyaluronate Inositol Butylene Glycol Glycerin Trehalose Pentaerythrityl Tetraethylhexanoate Hydrogenated Polyisobutene Hydrolyzed Silk Hydrogenated Polydecene Camellia Sinensis Leaf Extract Dimethicone Petrolatum Theanine
Caution for dry skin
Beheneth-20 Isostearic Acid Xanthan Gum Glycerin Alcohol Camellia Sinensis Leaf Extract Silica Uncaria Gambir Extract
Oily/Acne-Prone Skin 3/2
Good for oily/acne-prone skin
Alcohol Camellia Sinensis Leaf Extract Uncaria Gambir Extract
Caution for oily/acne-prone skin
Pentaerythrityl Tetraethylhexanoate Petrolatum
Sensitive Skin 6/20
Good for sensitive skin
Glycerin Camellia Sinensis Leaf Extract Dimethicone Tocopheryl Acetate Sodium Metabisulfite Petrolatum
Caution for sensitive skin
Glycine Dipropylene Glycol Maltitol Sodium Citrate Butylene Glycol Glycerin Citric Acid Alcohol Hydrogenated Polydecene Camellia Sinensis Leaf Extract Sodium Benzoate Phenoxyethanol Linalool Citronellol Alpha-Isomethyl Ionone Hexyl Cinnamal Limonene Benzyl Benzoate Geraniol Iris Florentina Root Extract

Ingredients list

70 total
Lower hazard (1) Higher hazard (7)
All70 Skin Conditioning47 Fragrance16 Masking14 Humectant14 Viscosity Controlling11 Hair Conditioning10 Solvent9 Emollient9
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
1
A
Pentaerythrityl Tetraethylhexanoate
(Binding Agent, Skin Conditioning Agent Occlusive, Viscosity Increasing Agent, Emollient, Viscosity Controlling)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
Potassium Methoxysalicylate
(Bleaching)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Behenyl Alcohol
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Emollient, Viscosity Controlling)
4
Petrolatum
(Hair Conditioning, Skin Conditioning Agent Occlusive, Skin Protecting, Emollient, Moisturising, Uv Absorber)
Bad for Oily Skin
Bad for Oily Skin
2
A
Hydrogenated Polydecene
(Fragrance, Hair Conditioning, Skin Conditioning, Emollient, Solvent)
1
A
Phytosteryl Macadamiate
(Hair Conditioning, Skin Conditioning)
Butyrospermum Parkii Butter
(Skin Conditioning, Viscosity Controlling)
1
Diglycerin
(Humectant, Skin Conditioning, Solvent)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
3
B
PEG/PPG-14/7 Dimethyl Ether
(Skin Conditioning)
1
A
Hydrogenated Polyisobutene
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Viscosity Controlling)
1
B
Beheneth-20
(Emulsifying, Surfactant)
2
Mica
(Cosmetic Colorant, Opacifying)
1
A
Batyl Alcohol
(Emulsion Stabilising, Emollient, Skin Conditioning)
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Maltitol
(Flavoring Agent, Humectant, Masking, Moisturising, Skin Conditioning)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
CI 77891
(Colorant)
Theanine
(Emollient, Humectant, Skin Conditioning)
1
A
Polyvinyl Alcohol
(Binding Agent, Film Forming, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
PARFUM
(Fragrance, Perfuming)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
1
Saccharomyces Ferment Lysate Filtrate
(Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
B
Sodium Metaphosphate
(Buffering Agent, Chelating Agent, Oral Care Agent)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
4
A
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing)
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
5
Alpha-Isomethyl Ionone
(Perfuming, Skin Conditioning)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
1
Lilium Candidum Bulb Extract
(Skin Conditioning)
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
6
A
Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking)
Allergens
Allergens
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
1
Angelica Acutiloba Root Extract
(Skin Conditioning)
olea europaea leaf extract
(Perfuming, Skin Conditioning)
Iris Florentina Root Extract
(Masking, Tonic)
1
Glucosamine HCl
(Ph Adjuster, Antistatic Agent, Hair Conditioning)
1
A
Glycine
(Buffering Agent, Fragrance, Hair Conditioning, Skin Conditioning Agent Miscellaneous, Antistatic Agent, Skin Conditioning)
Rubus Suavissimus Leaf Extract
(Skin Conditioning)
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Inositol
(Antistatic Agent, Hair Conditioning, Humectant)
2-O-Ethyl Ascorbic Acid
(Skin Conditioning)
1
Rehmannia Chinensis Root Extract
(Skin Conditioning, Tonic)
1
Artemisia Princeps Leaf Extract
(Skin Conditioning)
1
A
Isostearic Acid
(Binding Agent, Sufactantsurfactant Cleansing Agent Is Included As A Function For The Soap Form Of Isostearic Acid., Binding, Emulsifying)
Fungal Acne
Fungal Acne Trigger
Uncaria Gambir Extract
(Astringent)
1
A
Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
Pyrola Incarnata Extract
(Skin Conditioning)
1
Potentilla Erecta Root Extract
(Skin Conditioning)
1
Alteromonas Ferment Extract
(Skin Conditioning)
rosmarinus officinalis leaf extract
(Antimicrobial, Fragrance, Skin Conditioning)
1
Bupleurum Falcatum Root Extract
(Skin Conditioning)
1
B
Lauryl Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent)
1
Sodium Acetylated Hyaluronate
(Humectant)
1
Perilla Ocymoides Leaf Extract
(Tonic)
1
Hydrolyzed Conchiolin Protein
(Hair Conditioning, Skin Conditioning)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Antioxidants
Shields skin from free radical damage.
Vitamin E
Protects skin and soothes irritation.
Vitamin C
Brightens, evens tone, and supports collagen.
Hyaluronic Acid
Hydrates by attracting and holding water.
Exfoliators
Removes dead skin cells to smoothe texture.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Anti-AgingSoftens lines and helps skin look youthful.
BrighteningRestores radiance to dull, tired skin.
Reduces IrritationEases discomfort and supports skin resilience.
Reduces Large PoresMinimizes the look of enlarged pores.
Redness ReducingSoothes visible redness and calms irritation.
Good For Oily SkinBalances oil and helps reduce shine.

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe
Geraniol — higher EWG
May not suit sensitive skin

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 →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Dipropylene Glycol
Fragrance, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSolventViscosity decreasing agentMaskingViscosity controlling
Pentaerythrityl Tetraethylhexanoate
Binding agent, Skin-conditioning agent - occlusive
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentSkin-conditioning agent - occlusiveViscosity increasing agentEmollientViscosity controlling
Potassium Methoxysalicylate
Bleaching
Limited public safety data.Read moreShow less
EWG N/A Bleaching
Behenyl Alcohol
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingViscosity increasing agentBindingEmollientViscosity controlling
Hydrogenated Polydecene
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A FragranceHair conditioningSkin conditioningEmollientSolvent
Phytosteryl Macadamiate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioning
Butyrospermum Parkii Butter
Skin conditioning, Viscosity controlling
Limited public safety data.Read moreShow less
EWG N/A Skin conditioningViscosity controlling
Diglycerin
Humectant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 HumectantSkin conditioningSolvent
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
PEG/PPG-14/7 Dimethyl Ether
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Skin conditioning
Hydrogenated Polyisobutene
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollientViscosity increasing agentViscosity controlling
Beheneth-20
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
Mica
Cosmetic colorant, Opacifying
Low-hazard ingredient.Read moreShow less
EWG 2 Cosmetic colorantOpacifying
Batyl Alcohol
Emulsion stabilising, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingEmollientSkin conditioning
+ 38 more — see the full ingredients list above
Alcohol
Antifoaming agent, Antimicrobial
Causes moisture evaporation - prone to dry out skinRead moreShow less
EWG 2 Antifoaming agentAntimicrobialAstringentMaskingSolventViscosity controlling Bad for Dry SkinBad for Sensitive Skin
Dimethicone
Antifoaming agent, Skin protecting
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A Antifoaming agentSkin protectingEmollientSkin conditioning Silicone
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Petrolatum
Hair conditioning, Skin-conditioning agent - occlusive
Potentially comedogenic - can block poresRead moreShow less
EWG 4 Hair conditioningSkin-conditioning agent - occlusiveSkin protectingEmollientMoisturisingUv absorber Bad for Oily Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Citric Acid
Chelating agent, Fragrance
Skin irritation can occur at high concentrationRead moreShow less
EWG 2 CIR A Chelating agentFragrancePh adjusterBuffering agentMasking Bad for Sensitive Skin
Hexyl Cinnamal
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Citronellol
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Alpha-Isomethyl Ionone
Perfuming, Skin conditioning
Moderate-hazard ingredient.Read moreShow less
EWG 5 PerfumingSkin conditioning Allergens
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Geraniol
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMaskingTonic Allergens
Benzyl Benzoate
Fragrance, Solvent
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A FragranceSolventAntimicrobialMasking Allergens
+ 2 more — see the full ingredients list above

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Vitamin C (ascorbic) 5–20%

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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