Chronologiste Regenerating Leave-In Treatment

Kérastase

Chronologiste Regenerating Leave-In Treatment

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About this product

The Kérastase Chronologiste Regenerating Leave-In Treatment is a misc. Our analysis of its 37 ingredients (21 low-risk) rates it Great (79/100). 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
Misc
Ingredients
37
Low-risk
21
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 7/8
Good for dry skin
Dimethiconol Beeswax Isopropyl Myristate Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Dimethicone
Caution for dry skin
Disodium Stearoyl Glutamate Beeswax Trideceth-6 Hydroxypropyl Guar PEG-30 Glyceryl Stearate PEG-30 Dipolyhydroxystearate PEG-40 Hydrogenated Castor Oil Triethanolamine
Oily/Acne-Prone Skin No data
Sensitive Skin 2/17
Good for sensitive skin
Dimethicone Farnesol
Caution for sensitive skin
Beeswax Sodium Citrate Isopropyl Myristate Butylene Glycol PEG-40 Hydrogenated Castor Oil Farnesol Phenoxyethanol Linalool Benzyl Alcohol Citronellol Triethanolamine Hexyl Cinnamal Limonene Benzyl Salicylate Geraniol Coumarin Hydroxycitronellal

Ingredients list

37 total
Lower hazard (1) Higher hazard (7)
All37 Skin Conditioning18 Fragrance18 Masking12 Film Forming8 Surfactant7 Solvent6 Perfuming6 Emulsion Stabilising6
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
Cera Alba
(Film Forming, Perfuming, Skin Conditioning Emollient, Surfactant Emulsifying)
1
Beeswax
(Binding Agent, Emulsion Stabilising, Epilating Agent, Fragrance, Skin Conditioning Agent Miscellaneous, Emulsifying, Surfactant, Viscosity Increasing Agent, Emollient, Film Forming, Perfuming)
3
A
Dimethicone
(Antifoaming Agent, Skin Protecting, Emollient, Skin Conditioning)
Silicone
Silicone
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
1
A
Hydroxypropyl Guar
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling)
3
B
PEG-40 Hydrogenated Castor Oil
(Fragrance, Emulsifying, Surfactant, Perfuming)
Fungal Acne
Fungal Acne Trigger
5
B
Triethanolamine
(Fragrance, Ph Adjuster, Emulsifying, Surfactant, Buffering Agent, Masking)
1
A
Hydroxyethylcellulose
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Binding, Stabilising, Viscosity Controlling)
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
A
Dimethiconol
(Antifoaming Agent, Skin Conditioning, Emollient, Moisturising)
Silicone
Silicone
3
PEG-30 Glyceryl Stearate
(Sufactant, Surfactant, Emulsifying)
1
Hydrogenated Styrene/Butadiene Copolymer
(Film Forming, Viscosity Increasing Agent, Viscosity Controlling)
1
A
Ethylhexylglycerin
(Deodorant, Skin Conditioning)
7
Benzyl Salicylate
(Fragrance, Uv Absorber, Masking)
Allergens
Allergens
5
Hexyl Cinnamal
(Fragrance, Masking)
Allergens
Allergens
1
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
(Emulsion Stabilising, Film Forming, Viscosity Controlling)
5
A
Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking)
Allergens
Allergens
1
B
Disodium Stearoyl Glutamate
(Hair Conditioning, Skin Conditioning, Surfactant Cleansingagent)
6
Limonene
(Deodorant, Perfuming, Solvent)
Allergens
Allergens
5
Citronellol
(Fragrance, Masking)
Allergens
Allergens
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
Bisabolol
(Fragrance, Skin Conditioning, Soothing)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Safflower Glucoside
(Hair Conditioning)
7
Geraniol
(Fragrance, Masking, Tonic)
Allergens
Allergens
7
Hydroxycitronellal
(Fragrance, Masking)
Allergens
Allergens
7
Coumarin
(Fragrance, Masking)
Allergens
Allergens
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
3
PEG-30 Dipolyhydroxystearate
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
B
Trideceth-6
(Emulsifying, Surfactant)
5
Linalool
(Fragrance, Deodorant, Masking)
Allergens
Allergens
4
Farnesol
(Fragrance, Deodorant, Masking, Solvent, Soothing)
Allergens
Allergens
1
Alteromonas Ferment Extract
(Skin Conditioning)
1
A
Sodium Citrate
(Ph Adjuster, Buffering Agent, Chelating, Masking)
PARFUM
(Fragrance, Perfuming)

My Ingredient Notes

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Key ingredients

Antioxidants
Shields skin from free radical damage.
Vitamin E
Protects skin and soothes irritation.
Hyaluronic Acid
Hydrates by attracting and holding water.

Benefits

HydratingBoosts hydration and relieves dry, tight skin.
Barrier RepairStrengthen and restore your skin's natural barrier.
Redness ReducingSoothes visible redness and calms irritation.
Anti-AgingSoftens lines and helps skin look youthful.
Reduces IrritationEases discomfort and supports skin resilience.
Scar HealingImproves the look of marks and scars.
BrighteningRestores radiance to dull, tired skin.
Dark SpotsFades dark spots for even skin tone.

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 dry 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
Cera Alba
Film forming, Perfuming
Limited public safety data.Read moreShow less
EWG N/A Film formingPerfumingSkin conditioning emollientSurfactant emulsifying
Beeswax
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 Binding agentEmulsion stabilisingEpilating agentFragranceSkin-conditioning agent -miscellaneousEmulsifyingSurfactantViscosity increasing agentEmollientFilm formingPerfuming
Hydroxypropyl Guar
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentAntistatic agentBindingSurfactantViscosity controlling
Hydroxyethylcellulose
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingFilm formingViscosity increasing agentBindingStabilisingViscosity controlling
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
PEG-30 Glyceryl Stearate
Sufactant, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 SufactantSurfactantEmulsifying
Hydrogenated Styrene/Butadiene Copolymer
Film forming, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 Film formingViscosity increasing agentViscosity controlling
Ethylhexylglycerin
Deodorant, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A DeodorantSkin conditioning
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingViscosity controlling
Disodium Stearoyl Glutamate
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Hair conditioningSkin conditioningSurfactant - cleansingagent
TOCOPHEROL
Antioxidant, Fragrance
Limited public safety data.Read moreShow less
EWG N/A AntioxidantFragranceSkin conditioning
Bisabolol
Fragrance, Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A FragranceSkin conditioningSoothing
Safflower Glucoside
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioning
Trideceth-6
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
+ 3 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
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
PEG-40 Hydrogenated Castor Oil
Fragrance, Emulsifying
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B FragranceEmulsifyingSurfactantPerfuming Fungal-acne trigger
Triethanolamine
Fragrance, Ph adjuster
Moderate-hazard ingredient.Read moreShow less
EWG 5 CIR B FragrancePh adjusterEmulsifyingSurfactantBuffering agentMasking
Dimethiconol
Antifoaming agent, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antifoaming agentSkin conditioningEmollientMoisturising Silicone
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
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
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
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
+ 4 more — see the full ingredients list above

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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