Concentrated Brightening Serum

Clé de Peau Beauté

Where to buy Possibly in stock

About this product

The Clé de Peau Beauté Concentrated Brightening Serum is a serums, essence, ampoule. Our analysis of its 66 ingredients (44 low-risk) rates it Excellent (92/100). 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
66
Low-risk
44
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 13/10
Good for dry skin
Dipotassium Glycyrrhizate Batyl Alcohol Betaine Behenyl Alcohol Butylene Glycol Glycerin Trehalose Triethylhexanoin Hydrogenated Polyisobutene Hydrolyzed Silk Camellia Sinensis Leaf Extract Dimethicone Theanine
Caution for dry skin
Alpha-Glucan Oligosaccharide Isostearic Acid Xanthan Gum Glycerin Alcohol Camellia Sinensis Leaf Extract PEG-5 Glyceryl Stearate PEG-60 Glyceryl Isostearate Silica Uncaria Gambir Extract
Oily/Acne-Prone Skin 3/0
Good for oily/acne-prone skin
Alcohol Camellia Sinensis Leaf Extract Uncaria Gambir Extract
Sensitive Skin 7/20
Good for sensitive skin
Paeonia Suffruticosa Root Extract Glycerin Camellia Sinensis Leaf Extract Dimethicone Tocopheryl Acetate Sodium Metabisulfite BHT
Caution for sensitive skin
Citrus Unshiu Peel Extract Glycine Dipropylene Glycol Eucalyptus Globulus Leaf Extract Butylene Glycol Glycerin Triethylhexanoin Alcohol Camellia Sinensis Leaf Extract Sodium Benzoate Phenoxyethanol Linalool Citronellol Alpha-Isomethyl Ionone Hexyl Cinnamal Limonene Benzyl Benzoate BHT Geraniol Cinnamomum Cassia Bark Extract

Ingredients list

66 total
Lower hazard (1) Higher hazard (7)
All66 Skin Conditioning43 Fragrance15 Masking14 Viscosity Controlling11 Hair Conditioning10 Humectant10 Solvent8 Emulsion Stabilising8
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
A
Dipropylene Glycol
(Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling)
1
B
Betaine
(Hair Conditioning, Humectant, Antistatic Agent, Skin Conditioning, Viscosity Controlling)
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
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
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
Diphenylsiloxy Phenyl Trimethicone
(Antifoaming Agent, Hair Conditioning, Skin Conditioning)
1
A
Triethylhexanoin
(Fragrance, Hair Conditioning, Antistatic Agent, Emollient, Masking, Refatting, Skin Conditioning, Solvent)
1
2
A
Silica
(Abrasive, Absorbent, Anticaking Agent, Bulking Agent, Opacifying, Viscosity Controlling)
3
PEG-5 Glyceryl Stearate
(Emulsifying, Surfactant)
3
B
PEG/PPG-14/7 Dimethyl Ether
(Skin Conditioning)
Potassium Methoxysalicylate
(Bleaching)
1
Alpha-Glucan Oligosaccharide
(Cleansing, Skin Conditioning, Smoothing)
1
A
Hydrogenated Polyisobutene
(Skin Conditioning, Emollient, Viscosity Increasing Agent, Viscosity Controlling)
1
B
Lauryl Betaine
(Antistatic Agent, Hair Conditioning, Skin Conditioning, Sufactant, Foam Boosting, Viscosity Increasing Agent)
1
A
Trehalose
(Flavoring Agent, Humectant, Moisturising)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
1
Phytosteryl/Octyldodecyl Lauroyl Glutamate
(Skin Conditioning)
3-O-ETHYL ASCORBIC ACID
(Skin Conditioning)
1
A
Dipotassium Glycyrrhizate
(Flavoring Agent, Skin Conditioning, Humectant)
3
Tocopheryl Acetate
(Antioxidant, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
1
Lilium Candidum Bulb Extract
(Skin Conditioning)
1
Angelica Acutiloba Root Extract
(Skin Conditioning)
1
Paeonia Suffruticosa Root Extract
(Skin Protecting)
olea europaea leaf extract
(Perfuming, Skin 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
GARCINIA MANGOSTANA BARK EXTRACT
(Skin Conditioning)
1
Rehmannia Chinensis Root Extract
(Skin Conditioning, Tonic)
1
Artemisia Princeps Leaf Extract
(Skin Conditioning)
Uncaria Gambir Extract
(Astringent)
1
A
Hydrolyzed Silk
(Hair Conditioning, Skin Conditioning, Antistatic Agent, Humectant)
1
Bupleurum Falcatum Root Extract
(Skin Conditioning)
1
B
Citrus Unshiu Peel Extract
(Masking)
1
Eucalyptus Globulus Leaf Extract
(Perfuming, Skin Conditioning)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Saccharomyces Ferment Lysate Filtrate
(Skin Conditioning)
1
Perilla Ocymoides Leaf Extract
(Tonic)
1
Hydrolyzed Conchiolin Protein
(Hair Conditioning, Skin Conditioning)
3
PEG-60 Glyceryl Isostearate
(Surfactant)
1
A
Behenyl Alcohol
(Binding Agent, Emulsion Stabilising, Viscosity Increasing Agent, Binding, Emollient, Viscosity Controlling)
2
Mica
(Cosmetic Colorant, Opacifying)
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
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
A
Batyl Alcohol
(Emulsion Stabilising, Emollient, Skin Conditioning)
Theanine
(Emollient, Humectant, Skin Conditioning)
4
6
A
PEG-240/HDI Copolymer Bis-Decyltetradeceth-20 Ether
(Viscosity Increasing Agent, Stabilising, Viscosity Controlling)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
1
A
Disodium EDTA
(Chelating Agent, Viscosity Controlling)
3
B
Potassium Hydroxide
(Ph Adjuster, Buffering Agent)
4
A
Sodium Metabisulfite
(Antioxidant, Preservative, Reducing)
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
5
Alpha-Isomethyl Ionone
(Perfuming, Skin Conditioning)
Allergens
Allergens
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
6
A
Benzyl Benzoate
(Fragrance, Solvent, Antimicrobial, Masking)
Allergens
Allergens
1
Glucosamine HCl
(Ph Adjuster, Antistatic Agent, Hair Conditioning)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
6
A
BHT
(Antioxidant, Fragrance, Masking)
Cinnamomum Cassia Bark Extract
(Hair Conditioning, Masking, Oral Care Agent)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
PARFUM
(Fragrance, Perfuming)
CI 77891
(Colorant)

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.
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.
BrighteningRestores radiance to dull, tired skin.
Redness ReducingSoothes visible redness and calms irritation.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
Reduces Large PoresMinimizes the look of enlarged pores.
Scar HealingImproves the look of marks and scars.

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
Betaine
Hair conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningHumectantAntistatic agentSkin conditioningViscosity controlling
Diphenylsiloxy Phenyl Trimethicone
Antifoaming agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Antifoaming agentHair conditioningSkin conditioning
Triethylhexanoin
Fragrance, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceHair conditioningAntistatic agentEmollientMaskingRefattingSkin conditioningSolvent
Silica
Abrasive, Absorbent
Low-hazard ingredient.Read moreShow less
EWG 1–2 CIR A AbrasiveAbsorbentAnticaking agentBulking agentOpacifyingViscosity controlling
PEG-5 Glyceryl Stearate
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 EmulsifyingSurfactant
PEG/PPG-14/7 Dimethyl Ether
Skin conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Skin conditioning
Potassium Methoxysalicylate
Bleaching
Limited public safety data.Read moreShow less
EWG N/A Bleaching
Alpha-Glucan Oligosaccharide
Cleansing, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CleansingSkin conditioningSmoothing
Hydrogenated Polyisobutene
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningEmollientViscosity increasing agentViscosity controlling
Lauryl Betaine
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentHair conditioningSkin conditioningSufactantFoam boostingViscosity increasing agent
Trehalose
Flavoring agent, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Flavoring agentHumectantMoisturising
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Phytosteryl/Octyldodecyl Lauroyl Glutamate
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
+ 33 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
Tocopheryl Acetate
Antioxidant, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 3 AntioxidantSkin conditioning Bad for Oily Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Eucalyptus Globulus Leaf Extract
Perfuming, Skin conditioning
Potentially a skin irritantRead moreShow less
EWG 1 PerfumingSkin conditioning Bad for Sensitive Skin
Isostearic Acid
Binding agent, Sufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentSufactantsurfactant-cleansing agent is included as a function for the soap form of isostearic acid.BindingEmulsifying Fungal-acne trigger
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
PEG-240/HDI Copolymer Bis-Decyltetradeceth-20 Ether
Viscosity increasing agent, Stabilising
Moderate-hazard ingredient.Read moreShow less
EWG 4–6 CIR A Viscosity increasing agentStabilisingViscosity controlling
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
+ 3 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.

3-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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