Protect locks from the damaging effects of heat-styling with the Kérastase Extentioniste Thermique; a length-strengthening thermal gel-cream that reinforces tresses from root to tip, preventing tension and split ends.

Infused with the brand’s exclusive Creatine R™ complex combined with Taurine, the leave-in treatment goes to new lengths, working to smooth the hair follicles and provide the ultimate in hair endurance. Creamy and lightweight, it’s designed to gently restore hair and detangle without causing breakage. Ceramides promotes elasticity and moisture retention, aiding in the strengthening of weak, over-processed hair, whilst Maleic Acid helps neutralise pH levels of hair follicles, eliminating dandruff and removing dirt deposits.

Tousle through clean, damp hair before blow-drying, curling or straightening, for enhanced shine and inviolable resilience.

Brand:
Kerastase
Range:
EXTENTIONISTE
Directions:

Apply a walnut-sized amount to towel-dried hair. Style using a hairdryer or heat-styling appliance. In case of contact with eyes, rinse them immediately and thoroughly. Leave in, do not rinse.

Ingredients:

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, C232877/1.

Volume:
150ml

Kérastase Extentioniste Thermique

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GBP 19.0

RRP: £23.80

£19.00

Save: £4.80

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Usually dispatched within 24 hours

Save 20% + select your own sample

Save 20% on selected Kerastase. Discount has been applied to the RRP. Offer valid for a limited time only. Select your own sample when you spend £50 on Kérastase. Complimentary gift will be awarded at the basket. Offer valid for a limited time only, while stocks last.
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Save 20% + select your own sample
Save 20% on selected Kerastase. Discount has been applied to the RRP. Offer valid for a limited time only. Select your own sample when you spend £50 on Kérastase. Complimentary gift will be awarded at the basket. Offer valid for a limited time only, while stocks last.
Shop the offer

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Protect locks from the damaging effects of heat-styling with the Kérastase Extentioniste Thermique; a length-strengthening thermal gel-cream that reinforces tresses from root to tip, preventing tension and split ends.

Infused with the brand’s exclusive Creatine R™ complex combined with Taurine, the leave-in treatment goes to new lengths, working to smooth the hair follicles and provide the ultimate in hair endurance. Creamy and lightweight, it’s designed to gently restore hair and detangle without causing breakage. Ceramides promotes elasticity and moisture retention, aiding in the strengthening of weak, over-processed hair, whilst Maleic Acid helps neutralise pH levels of hair follicles, eliminating dandruff and removing dirt deposits.

Tousle through clean, damp hair before blow-drying, curling or straightening, for enhanced shine and inviolable resilience.

Brand:
Kerastase
Range:
EXTENTIONISTE
Directions:

Apply a walnut-sized amount to towel-dried hair. Style using a hairdryer or heat-styling appliance. In case of contact with eyes, rinse them immediately and thoroughly. Leave in, do not rinse.

Ingredients:

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, C232877/1.

Volume:
150ml

Frequently Bought Together

Kérastase Extentioniste Thermique
This item
Kérastase Extentioniste Thermique
£19.00
Kérastase Extentioniste Thermique + Kérastase Bain Extenstioniste 500ml

Total Price: £48.20

Add both to basket
Kérastase Extentioniste Thermique
This item
Kérastase Extentioniste Thermique
£19.00
Add both to basket

Other customers bought:

  • Kérastase Discipline Fluidissime Spray 150ml Duo

    Save 20% + select your own sample

    Save 20% on selected Kerastase. Discount has been applied to the RRP. Offer valid for a limited time only. Select your own sample when you spend £50 on Kérastase. Complimentary gift will be awarded at the basket. Offer valid for a limited time only, while stocks last.
    Shop the offer
    RRP: £47.60
    £38.05

Customer Reviews

Overall Rating : 4.83 / 5 (6 Reviews)
  • 5 5 star reviews
  • 1 4 star reviews
  • 0 3 star reviews
  • 0 2 star reviews
  • 0 1 star reviews

Top Customer Reviews

Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.

LOVE this product!

As a hairdresser I only want the best for my hair, this product is amazing! This range smells lush, it tamed my thick, frizzy, damaged hair, my hair was super sleek and glossy after straightening it (which I struggle to get) and it protects your hair up to 230°! 

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Heat protection

First time using this range after trying various Kerastase ranges. I think this suits my hair best. I've long thick hair in good condition and this does what it's supposed to do. It smells nice too. I intend to buy the rest of this range

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A little goes a long way

I really like this product, it smells nice, doesn't weigh my hair down and seems to help detangle my hair. My hair feels smooth and looks lovely and shiny once styled. The only thing to be a little bit wary of is that if you use too much it does make your hair greasey quicker... I probably use a pea sided amount and I have shoulder length hair.

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Excellent product for fine lengths

Have previously used the Resistance one and the hydrating one from this thermal protection line and really liked both. Lately have noticed Resistance making my hair brittle (long very thin hair but lots of it) and it has been breaking due harsh cold climate of Scandinavia. I decided to give this one a go instead and it is amazing. Makes hair so smooth, strong and voluminous. Doesn't weight it down as the hydrating one (orange bottle) seems to do and felt my hair so much more manageable from lengths. Can highly recommend.

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Another great Kerastase product

I’m using this along with the conditioner from the same range and shampoo from the Densifique line and my hair hasn’t been better! The last time I went to cut my hair was in March and my ends started to look dry and damaged just recently, having in mind that I have a mid-length not too thick not too fine hair and I use hair straighteners at least 4-5 times per week. Will definitely re-purchase.

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Best product

This is by far the best product going if you have brittle damaged hair from bleech styling tools ect. Worth every penny I'm a hairdresser and worked with loreal and so on but this is the 1st shampoo and conditioner that's do what it says it's not just the name it's the product its self that really does repair the hair. When I found this on this website I was delighted .I'm passing this on to so many friends too.

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