Masque Extentioniste Hair Mask
The Kérastase Masque Extentioniste Hair Mask is a misc. Our analysis of its 24 ingredients (13 low-risk) rates it Excellent (81/100). Heads up: it contains fragrance, which can irritate sensitive or reactive skin.
The Kérastase Masque Extentioniste Hair Mask is a misc. Our analysis of its 24 ingredients (13 low-risk) rates it Excellent (81/100). 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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Cetearyl Alcohol
(Emulsion Stabilising, Opacifying, Foam Boosting, Viscosity Increasingagent Aqueous, Viscosity Increasing Agent, Emollient, Emulsifying, Viscosity Controlling) |
|
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Amodimethicone
(Antistatic Agent, Hair Conditioning) |
Silicone
|
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Behentrimonium Methosulfate
(Antistatic Agent, Hair Conditioning, Surfactant) |
|
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Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative) |
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Ethanolamine
(Ph Adjuster, Buffering Agent) |
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Maleic Acid
(Fragrance, Ph Adjuster, Buffering Agent) |
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Phenoxyethanol
(Fragrance, Preservative) |
Paraben
|
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Isopropyl Alcohol
(Antifoaming Agent, Fragrance, Solvent, Viscosity Decreasing Agent, Perfuming, Viscosity Controlling) |
Bad for Sensitive Skin
|
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Benzoic Acid
(Fragrance, Ph Adjuster, Preservative, Bulking Agent, Masking) |
Bad for Sensitive Skin
|
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Trideceth-6
(Emulsifying, Surfactant) |
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Hydroxypropyl Guar
(Binding Agent, Emulsion Stabilising, Film Forming, Viscosity Increasing Agent, Antistatic Agent, Binding, Surfactant, Viscosity Controlling) |
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Amyl Cinnamal
(Perfuming) |
Allergens
|
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Hexyl Cinnamal
(Fragrance, Masking) |
Allergens
|
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Benzyl Alcohol
(External Analgesic, Fragrance, Oral Health Care Drug, Preservative, Solvent, Viscosity Decreasing Agent, Masking) |
Allergens
|
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Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative) |
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Linalool
(Fragrance, Deodorant, Masking) |
Allergens
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Hydroxycitronellal
(Fragrance, Masking) |
Allergens
|
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Citronellol
(Fragrance, Masking) |
Allergens
|
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Limonene
(Deodorant, Perfuming, Solvent) |
Allergens
|
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Benzyl Cinnamate
(Fragrance, Perfuming) |
Allergens
|
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Creatine
(Skin Conditioning) |
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2-Oleamido-1,3-Octadecanediol
(Skin Conditioning, Emollient) |
|
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PARFUM
(Fragrance, Perfuming) |
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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.
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Alternatives
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Similar formula, but a safer ingredient profile than this product (81/100).
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