Chronologiste Overnight Youth Serum

Kérastase

Chronologiste Overnight Youth Serum

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About this product

The Kérastase Chronologiste Overnight Youth Serum is a misc. Our analysis of its 34 ingredients (17 low-risk) rates it Great (79/100). Based on its ingredients, it looks well-suited to dry skin. Heads up: it contains fragrance, which can irritate sensitive or reactive skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Misc
Ingredients
34
Low-risk
17
Fragrance
Contains fragrance
Origin
France

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 5/3
Good for dry skin
C13-14 Isoparaffin Isopropyl Myristate Glycerin Propylene Glycol Dimethicone
Caution for dry skin
Benzaldehyde Glycerin Laureth-7
Oily/Acne-Prone Skin No data
Sensitive Skin 2/24
Good for sensitive skin
Glycerin Dimethicone
Caution for sensitive skin
Linalyl Acetate Benzaldehyde Isopropyl Myristate Geranyl Acetate Glycerin Propylene Glycol Tetramethyl Acetyloctahydronaphthalenes Citric Acid Carvone Sodium Benzoate Potassium Sorbate Phenoxyethanol Linalool Benzyl Alcohol Citronellol Hexyl Cinnamal Limonene Benzyl Salicylate Geraniol Coumarin Hydroxycitronellal Beta-Caryophyllene Trimethylbenzenepropanol Pogostemon Cablin Leaf Oil

Ingredients list

34 total
Lower hazard (1) Higher hazard (7)
All34 Fragrance20 Masking16 Perfuming10 Solvent8 Skin Conditioning8 Humectant4 Preservative4 Skin Protecting3
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
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
B
Isopropyl Myristate
(Binding Agent, Fragrance, Skin Conditioning, Emollient, Binding, Perfuming, Solvent)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
4
B
Polyacrylamide
(Binding Agent, Film Forming, Hair Fixing, Antistatic Agent, Binding)
1
B
C13-14 Isoparaffin
(Emollient, Solvent)
3
B
Laureth-7
(Emulsifying, Surfactant)
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
1
Tetramethyl Acetyloctahydronaphthalenes
(Masking, Perfuming, Skin Conditioning)
2
Carvone
(Flavoring Agent, Fragrance, Perfuming)
Citrus Aurantium Amara Peel Oil
(Skin Conditioning)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
Pogostemon Cablin Leaf Oil
(Masking)
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
1
Linalyl Acetate
(Fragrance, Masking)
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
7
Hydroxycitronellal
(Fragrance, Masking)
Allergens
Allergens
1
Macrocystis Pyrifera Extract
(Viscosity Controlling)
1
Hydroxypropyl Tetrahydropyrantriol
(Skin Conditioning)
1
A
Benzaldehyde
(Denaturant, Flavoring Agent, Fragrance, Masking, Solvent)
1
Geranyl Acetate
(Fragrance, Perfuming, Tonic)
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
Trimethylbenzenepropanol
(Masking, Perfuming)
Rose Ketone-4
(Perfuming)
3
B
Propylene Glycol
(Fragrance, Humectant, Skin Conditioningagent Miscellaneous, Solvent, Viscosity Decreasing Agent, Skin Conditioning, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
Beta-Caryophyllene
(Masking, Perfuming, Skin Conditioning)
3
A
Potassium Sorbate
(Fragrance, Preservative)
3
A
Sodium Benzoate
(Fragrance, Preservative, Anticorrosive, Masking)
PARFUM
(Fragrance, Perfuming)

My Ingredient Notes

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Key ingredients

Dimethicone
Skin Protecting, Emollient
Glycerin
Humectant, Skin Protecting
Isopropyl Myristate
Skin Conditioning, Emollient
C13-14 Isoparaffin
Emollient
Benzyl Salicylate
Uv Absorber
Tetramethyl Acetyloctahydronaphthalenes
Skin Conditioning

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Scar HealingImproves the look of marks and scars.
Barrier RepairStrengthen and restore your skin's natural barrier.

Concerns

Contains paraben
Contains silicone
Contains eu allergen
Not fungal acne (malassezia) safe
Benzyl Salicylate — higher EWG
Geraniol — higher EWG
Hydroxycitronellal — 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
Polyacrylamide
Binding agent, Film forming
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Binding agentFilm formingHair fixingAntistatic agentBinding
C13-14 Isoparaffin
Emollient, Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmollientSolvent
Laureth-7
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant
Tetramethyl Acetyloctahydronaphthalenes
Masking, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 1 MaskingPerfumingSkin conditioning
Carvone
Flavoring agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 Flavoring agentFragrancePerfuming
Citrus Aurantium Amara Peel Oil
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Pogostemon Cablin Leaf Oil
Masking
Limited public safety data.Read moreShow less
EWG N/A Masking
Linalyl Acetate
Fragrance, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceMasking
Macrocystis Pyrifera Extract
Viscosity controlling
Low-hazard ingredient.Read moreShow less
EWG 1 Viscosity controlling
Hydroxypropyl Tetrahydropyrantriol
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Benzaldehyde
Denaturant, Flavoring agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DenaturantFlavoring agentFragranceMaskingSolvent
Geranyl Acetate
Fragrance, Perfuming
Low-hazard ingredient.Read moreShow less
EWG 1 FragrancePerfumingTonic
Trimethylbenzenepropanol
Masking, Perfuming
Limited public safety data.Read moreShow less
EWG N/A MaskingPerfuming
Rose Ketone-4
Perfuming
Limited public safety data.Read moreShow less
EWG N/A Perfuming
+ 4 more — see the full ingredients list above
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
Isopropyl Myristate
Binding agent, Fragrance
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR B Binding agentFragranceSkin conditioningEmollientBindingPerfumingSolvent Bad for Oily SkinFungal-acne trigger
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Benzyl Salicylate
Fragrance, Uv absorber
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceUv absorberMasking Allergens
Hexyl Cinnamal
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Benzyl Alcohol
External analgesic, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR A External analgesicFragranceOral health care drugPreservativeSolventViscosity decreasing agentMasking Allergens
Linalool
Fragrance, Deodorant
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceDeodorantMasking Allergens
Limonene
Deodorant, Perfuming
Moderate-hazard ingredient.Read moreShow less
EWG 6 DeodorantPerfumingSolvent Allergens
Citronellol
Fragrance, Masking
Moderate-hazard ingredient.Read moreShow less
EWG 5 FragranceMasking Allergens
Geraniol
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMaskingTonic Allergens
Hydroxycitronellal
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
Coumarin
Fragrance, Masking
Higher-hazard ingredient.Read moreShow less
EWG 7 FragranceMasking Allergens
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
Propylene Glycol
Fragrance, Humectant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceHumectantSkin-conditioningagent - miscellaneousSolventViscosity decreasing agentSkin conditioningViscosity controlling Good for Dry Skin

How to use

How to use

  • 1 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.

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