Résistance Serum Extentioniste Scalp & Hair Serum

Kérastase

Résistance Serum Extentioniste Scalp & Hair Serum

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About this product

The Kérastase Résistance Serum Extentioniste Scalp & Hair Serum is a misc. Our analysis of its 31 ingredients (25 low-risk) rates it Excellent (97/100). Based on its ingredients, it looks well-suited to oily / acne-prone 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
31
Low-risk
25
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 7/11
Good for dry skin
2-Oleamido-1,3-Octadecanediol Stearyl Alcohol Rose Extract Candelilla Cera Propylene Glycol PPG-1 Trideceth-6 Camellia Sinensis Leaf Extract
Caution for dry skin
Maltodextrin Sorbitan Oleate Stearyl Alcohol Xanthan Gum Quaternium-87 Trideceth-6 PPG-1 Trideceth-6 Acrylates Copolymer Camellia Sinensis Leaf Extract Cetrimonium Chloride Polysorbate 20
Oily/Acne-Prone Skin 1/1
Good for oily/acne-prone skin
Camellia Sinensis Leaf Extract
Caution for oily/acne-prone skin
Rose Extract
Sensitive Skin 2/8
Good for sensitive skin
Camellia Sinensis Leaf Extract BHT
Caution for sensitive skin
Menthoxypropanediol Sodium Citrate Sorbitan Oleate Stearyl Alcohol Propylene Glycol Isopropyl Alcohol Camellia Sinensis Leaf Extract BHT

Ingredients list

31 total
Lower hazard (1) Higher hazard (6)
All31 Skin Conditioning13 Film Forming10 Fragrance8 Emulsion Stabilising7 Surfactant7 Viscosity Controlling6 Antistatic Agent6 Emulsifying6
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
1
B
Polyquaternium-37
(Antistatic Agent, Film Forming, Hair Fixing)
PARAFFINUM LIQUIDUM
(Antistatic, Skin Conditioning Emollient, Skin Protecting, Solvent)
1
A
Amodimethicone
(Antistatic Agent, Hair Conditioning)
Silicone
Silicone
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
1
Quaternium-87
(Cleansing, Hair Conditioning, Surfactant)
1
A
Stearyl Alcohol
(Emulsion Stabilising, Fragrance, Emulsifying, Surfactant, Foambooster, Viscosity Increasing Agent, Emollient, Foam Boosting, Masking, Opacifying, Refatting, Viscosity Controlling)
1
Menthoxypropanediol
(Flavoring Agent, Fragrance, Masking, Refreshing)
3
B
Behentrimonium Chloride
(Antistatic Agent, Hair Conditioning, Preservative)
1
Safflower Glucoside
(Hair Conditioning)
1
A
Maltodextrin
(Absorbent, Binding Agent, Emulsion Stabilising, Film Forming, Hair Conditioning, Skin Conditioning, Suspending Agent Nonsurfactant, Binding)
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
1
Candelilla Cera
(Emollient, Film Forming)
Euphorbia Cerifera Cera
(Astringent, Emulsion Stabilising, Film Forming, Perfuming, Skin Conditioning, Viscosity Controlling)
1
B
PPG-1 Trideceth-6
(Skin Conditioning, Emollient, Emulsifying, Surfactant)
1
Propanediol
(Solvent, Viscosity Decreasing Agent, Viscosity Controlling)
4
B
Chlorhexidine Digluconate
(Cosmetic Biocide, Oral Care Agent, Preservative, Antimicrobial)
2
A
Isopropyl Alcohol
(Antifoaming Agent, Fragrance, Solvent, Viscosity Decreasing Agent, Perfuming, Viscosity Controlling)
Bad for Sensitive Skin
Bad for Sensitive Skin
1
B
Trideceth-6
(Emulsifying, Surfactant)
2
B
Acrylates Copolymer
(Adhesive, Artificial Nail Builder, Binding Agent, Film Forming, Hair Fixing, Suspending Agent Nonsurfactant, Antistatic Agent, Binding)
1
A
Sorbitan Oleate
(Fragrance, Emulsifying, Surfactant)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
A
Polyquaternium-11
(Antistatic Agent, Film Forming, Hair Fixing)
1
Rose Extract
(Skin Conditioning Agent Occlusive)
1
A
2-Oleamido-1,3-Octadecanediol
(Skin Conditioning, Emollient)
3
B
Cetrimonium Chloride
(Antistatic Agent, Cosmetic Biocide, Emulsifying, Surfactant, Antimicrobial, Preservative)
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
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
TOCOPHEROL
(Antioxidant, Fragrance, Skin Conditioning)
6
A
BHT
(Antioxidant, Fragrance, Masking)
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.

Benefits

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

Concerns

Contains silicone
Not fungal acne (malassezia) safe
May not suit dry skin
May not suit sensitive skin

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Polyquaternium-37
Antistatic agent, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Antistatic agentFilm formingHair fixing
PARAFFINUM LIQUIDUM
Antistatic, Skin conditioning emollient
Limited public safety data.Read moreShow less
EWG N/A AntistaticSkin conditioning emollientSkin protectingSolvent
Quaternium-87
Cleansing, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CleansingHair conditioningSurfactant
Stearyl Alcohol
Emulsion stabilising, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingFragranceEmulsifyingSurfactant- foamboosterViscosity increasing agentEmollientFoam boostingMaskingOpacifyingRefattingViscosity controlling
Menthoxypropanediol
Flavoring agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 1 Flavoring agentFragranceMaskingRefreshing
Behentrimonium Chloride
Antistatic agent, Hair conditioning
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B Antistatic agentHair conditioningPreservative
Safflower Glucoside
Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Hair conditioning
Maltodextrin
Absorbent, Binding agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AbsorbentBinding agentEmulsion stabilisingFilm formingHair conditioningSkin conditioningSuspending agent - nonsurfactantBinding
Candelilla Cera
Emollient, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 EmollientFilm forming
Euphorbia Cerifera Cera
Astringent, Emulsion stabilising
Limited public safety data.Read moreShow less
EWG N/A AstringentEmulsion stabilisingFilm formingPerfumingSkin conditioningViscosity controlling
PPG-1 Trideceth-6
Skin conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B Skin conditioningEmollientEmulsifyingSurfactant
Propanediol
Solvent, Viscosity decreasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 SolventViscosity decreasing agentViscosity controlling
Chlorhexidine Digluconate
Cosmetic biocide, Oral care agent
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR B Cosmetic biocideOral care agentPreservativeAntimicrobial
Trideceth-6
Emulsifying, Surfactant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B EmulsifyingSurfactant
+ 9 more — see the full ingredients list above
Amodimethicone
Antistatic agent, Hair conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Antistatic agentHair conditioning Silicone
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
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
Isopropyl Alcohol
Antifoaming agent, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A Antifoaming agentFragranceSolventViscosity decreasing agentPerfumingViscosity controlling Bad for Sensitive Skin
Sorbitan Oleate
Fragrance, Emulsifying
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceEmulsifyingSurfactant Bad for Oily SkinFungal-acne trigger
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
BHT
Antioxidant, Fragrance
Moderate-hazard ingredient.Read moreShow less
EWG 6 CIR A AntioxidantFragranceMasking

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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