Kérastase Résistance Extentioniste Thermique 150ml heat protectant for long, fragile and damaged hair
Thermal protective treatment to protect and strengthen lengths
The Kérastase Résistance Extentioniste Thermique 150ml is a leave-in pre-blow-dry treatment designed for long, fragile hair prone to breakage. This professional heat protectant helps shield the hair fiber from styling heat while improving the strength of the lengths.
The advanced formula creates a protective barrier that defends hair from heat up to 230°C, helping to prevent breakage and the formation of split ends. The result is hair that is stronger, softer and healthier-looking.
Perfect for those who frequently use a blow-dryer, flat iron or curling iron and want to maintain strong, shiny lengths.
Benefits of the Kérastase Extentioniste Thermique heat protectant
Heat protection up to 230°C
Protects the hair fiber from damage caused by blow-dryers, flat irons and styling tools.
Strengthens hair structure
Thanks to the presence of Creatine R, it helps improve the resistance and elasticity of the hair fiber.
Reduces split end formation
The formula helps to seal the ends and protect the lengths, keeping hair healthier.
Smoother, more manageable hair
Helps control frizz and makes hair softer and easier to comb.
Who it's for
The Kérastase Résistance Extentioniste Thermique is ideal for:
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Long, fragile hair
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Damaged or sensitized hair
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Hair that breaks easily
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Hair frequently subjected to heat styling
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Hair with damaged ends or split ends
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Those who want to protect and strengthen their lengths
It is particularly suitable for anyone who wants to grow their hair while keeping it strong and protected.
Key ingredients
Creatine R
A reinforcing complex that helps improve the resistance and elasticity of the hair fiber.
Ceramides
Help strengthen hair structure and protect the fiber.
Taurine
An amino acid that contributes to protecting and reinforcing hair, improving the quality of the lengths.
How to use
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Apply the product before blow-drying.
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Dispense 1–2 walnut-sized amounts of product into the hands.
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Distribute through washed, towel-dried hair.
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Massage into lengths and ends.
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Do not rinse and proceed with styling.
Professional tips
For best results:
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Use before a blow-dryer, flat iron or curling iron.
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Comb hair after application to distribute the product evenly.
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Ideal when used in combination with treatments from the Kérastase Résistance Extentioniste line.
Ingredients (INCI)
Aqua / Water / Eau, Isopropyl Myristate, Dimethicone, Triethanolamine, Amodimethicone, Phenoxyethanol, Carbomer, Polyquaternium-4, Potato Starch Modified, Hydroxypropyl Guar, Behentrimonium Chloride, Trideceth-6, Amyl Cinnamal, Hexyl Cinnamal, Isopropyl Alcohol, Benzyl Alcohol, Linalool, Hydroxycitronellal, Cetrimonium Chloride, Citronellol, Limonene, Benzyl Cinnamate, Creatine, 2-Oleamido-1,3-Octadecanediol, Taurine, Parfum / Fragrance.
Product ingredient lists may be updated periodically. We recommend always checking the list on the packaging.
Warnings
No specific precautions are necessary for the use of this product under normal or reasonably foreseeable conditions.
Product distributed by:
L’Oréal
14, Rue Royale 75008 Paris
servizioconsumatorikerastase.corpit@loreal.com
Frequently Asked Questions (FAQ)
Does this product really protect against flat iron heat?
Yes, it provides heat protection up to 230°C, helping to reduce damage from styling tools.
Should it be applied to wet or dry hair?
It is recommended to apply it to washed, towel-dried hair before blow-drying.
Does it weigh down fine hair?
No, the formula is designed to protect and smooth without weighing lengths down.
Is it necessary to rinse the product out?
No, it is a leave-in treatment, so it should not be rinsed out.
Can it be used with a flat iron or curling iron?
Yes, it is ideal for protecting hair during the use of blow-dryers, flat irons and curling irons.
Is it suitable for chemically treated or colored hair?
Yes, it helps to protect and strengthen hair sensitized by chemical treatments.
