Skip to product information
1 of 14

KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz

KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz

Regular price £74.00 GBP
Sale price £74.00 GBP Regular price
Save % Sold out

Curated for everyday beauty routines

Tracked delivery across the United Kingdom

Secure checkout

KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz

Regular price £74.00
Sale price £74.00 Regular price
Save % Sold out
  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Tracked UK delivery. Estimated arrival between - and -.

Product Overview

The KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream is a targeted treatment designed for long, fragile, and damaged hair. Infused with Creastine and Vitamin B6, this leave-in cream works to strengthen the hair fiber, protect against heat styling up to 450°F, and seal split ends to prevent further breakage. Its lightweight, non-greasy formula leaves hair smooth, shiny, and more resistant to daily stressors.

Key Features and Benefits

  • Heat Protection: Provides thermal protection up to 450°F, shielding hair from damage caused by blow-dryers, flat irons, and curling wands.
  • Strengthens Hair: Creastine and Vitamin B6 penetrate the hair cortex to reinforce the fiber, reducing breakage and improving elasticity.
  • Seals Split Ends: The unique formula helps seal split ends, preventing them from traveling up the hair shaft and causing further damage.
  • Lightweight Leave-In Cream: Non-greasy texture that doesn't weigh hair down, making it suitable for fine to medium hair types.
  • Improves Manageability: Detangles and smooths the cuticle, reducing frizz and making hair easier to style.
  • Long-Lasting Results: With regular use, hair becomes visibly stronger, healthier, and more resistant to future damage.

How to Use

Apply a small amount (about a dime-sized drop) to towel-dried or dry hair, focusing on mid-lengths and ends. Do not rinse. For best results, use before heat styling. Can be used daily or as needed. Suitable for all hair types, especially long hair prone to breakage and split ends.

Who It Is For

This product is ideal for individuals with long, fragile, or damaged hair who frequently use heat styling tools. It is also beneficial for those looking to maintain hair length by preventing breakage and split ends. Suitable for all hair types, including color-treated hair.

Why Choose This Product

KERASTASE is a leading professional haircare brand trusted by salons worldwide. The Resistance Extentioniste Thermique combines advanced heat protection with strengthening and split-end sealing benefits, offering a comprehensive solution for long hair care. Unlike many heat protectants, this leave-in cream not only shields from heat but also actively repairs and fortifies the hair fiber from within. Its lightweight formula ensures that hair remains voluminous and bouncy while being protected.

Technical Details

  • Size: 5.1 Fl Oz (150 ml)
  • Weight: 5.1 ounces
  • Dimensions: 16.26 cm x 5.08 cm x 1.14 cm
  • Form: Cream
  • Heat Protection: Up to 450°F
  • Key Ingredients: Creastine, Vitamin B6
  • Packaging: Tube

Experience the difference of professional haircare with KERASTASE Resistance Extentioniste Thermique. Add it to your daily routine to protect, strengthen, and seal your hair, ensuring it stays healthy and beautiful even with regular heat styling.

Delivery in the United Kingdom

Orders are prepared with clear UK delivery expectations from the product page through dispatch. Delivery estimates are shown before checkout where available, and tracking details are sent after the order leaves fulfilment so customers can follow the parcel and plan around the expected arrival window.

Returns and support

Avelise is set up around straightforward post-purchase support and a 30-day returns message. Please check the store returns policy before sending an item back, because final eligibility can depend on product condition, hygiene exclusions, packaging, proof of purchase and whether the return request is started within the stated return window.

How to choose

Use the product description, available variants, product images and collection filters to compare suitability, finish, shade, size, texture or routine step. For beauty products, always review the ingredient list, directions, warnings and usage information on the product packaging before applying, especially when choosing skincare, haircare or body care for a specific concern.

Ingredients and suitability

Ingredient lists, shade details, materials and suitability notes can change by batch or supplier. Check the product packaging first, compare any allergens or sensitivities before use, patch test where appropriate and stop use if irritation occurs. If you are unsure whether a product is right for you, seek professional advice before applying it.

View full details

Why shop with Avelisse

Why Shop with Avelisse?

Secure Checkout

Checkout is handled securely through Shopify.

Clear Returns Policy

Returns information is written plainly before purchase.

Tracked Delivery Options

Delivery messaging is set up for United Kingdom shoppers.

Dedicated Customer Support

Support routes are available for order and product questions.

Carefully Selected Products

Products are organised for easier beauty discovery.

Product guide

KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz at Avelisse

Product Overview The KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream is a targeted treatment designed for long, fragile, and damaged hair. Infused with Creastine and Vitamin B6, this leave-...

Category Beauty
Delivery area United Kingdom
Checkout Secure checkout
hair strengtheningheat protectantKERASTASEleave-in creamlong hair caresplit endsthermal protection

How to decide if this product fits your routine

Read the product description, compare available variants and check the packaging before use. For skincare, haircare and body care products, patch test when appropriate and stop use if irritation occurs.

What Avelisse makes clear before checkout

The page surfaces price, availability, variant choices, UK delivery expectations, returns guidance and secure checkout information so customers can make a quicker decision.

Questions about KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz

Is KERASTASE Resistance Extentioniste Thermique Heat Protecting Leave-In Cream - Strengthens Hair, Prevents Damage, Seals Split Ends - 5.1 Fl Oz available for UK shoppers?

Yes. This product is currently shown as available on Avelisse for United Kingdom shoppers.

How should I compare this product with similar beauty items?

Compare the product type, ingredients or materials shown on packaging, variants, price, delivery expectations and the routine step it supports.

Where can I find delivery and returns information?

Delivery timing is shown near the add to basket area where available. Returns guidance is shown on the product page and final eligibility is covered in the store returns policy.