- Hair Care
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- Hair Oils & Serums
- Kérastase Resistance Serum Extentioniste
Kérastase Resistance Serum Extentioniste
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Product Description
Kérastase Resistance Serum Extentioniste is specially designed to protect and strengthen hair that's prone to breakage. It is lightweight and fluid enough to be left in the hair without leaving behind any residue or grease. It simply nourishes each strand deeply, fortifying your locks from the inside out. This is done with a powerful blend of ceramides and lipids, which seal the cuticle and smooth down its surface so hair looks significantly softer and more healthy.
The nourishing formula contains everything your hair needs to become noticeably hydrated and glossy. It also provides a defensive barrier across the scalp, preventing the damaging effects of external aggressors, and rids the skin of impurities.
Double up on the hair-loving action with Kérastase Resistance Ciment Thermique.

Written by Alex Bryson, Content Editor

Product Details
Hair Type: Fine, thick and colored
Hair Benefit: Smoothing, strengthening
Hair Concern: Oily/greasy, dry, damaged, split ends, weak and brittle
Ingredient Highlights: Contains ceramide.
Ingredient Features
The ceramide in this Kérastase hair treatment item helps to act as a conditioning agent and to lock nutrients in.
How To Use
- Apply a few drops to hair and scalp, either dry or wet
- Massage in
- Do not rinse
- In case of contact with eyes, rinse out thoroughly with water
Brand Bio
Whether your hair is color treated, over styled or weathered, the Resistance collection from award winning hair brand Kérastase is a remedy for any concern. Specifically formulated to treat problems such as dry, damaged, brittle or broken hair, the range features a wide spectrum of products from shampoo to conditioner, mask to reparative treatment to leave hair strong and resilient once again.
Where To Buy
This hair treatment product by Kérastase is stocked online in the US by Sephora though it has been sold out since March 2022.
Reviews
Based on 7 reviews from Look Fantastic, this hair treatment product by Kérastase is rated 4.7 out of 5. Reviews for this product are combined across stores and an average score is calculated. See the website of the store for review content.
- Shipping & Returns
This product is eligible for free standard shipping with Sephora, arriving 1 - 3 working days after dispatch. Express/Next day shipping option available. Worldwide shipping generally available, shipping costs vary by region, full list and postage costs available during checkout.
Conditions are subject to change, however this retailer's site suggests its returns policy is 30 days.