--- product_id: 257244121 title: "Extentioniste Serum" brand: "kérastase" price: "FREE" currency: JPY in_stock: false reviews_count: 8 url: https://www.desertcart.jp/products/257244121-extentioniste-serum store_origin: JP region: Japan --- # Delivers instantly shiny, smooth texture Highly concentrated with active ceramides Strengthens hair growth by 30% Extentioniste Serum **Brand:** kérastase **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 💫 Unlock your hair’s full potential with every drop! ## Quick Answers - **What is this?** Extentioniste Serum by kérastase - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/257244121-extentioniste-serum) ## Best For - kérastase enthusiasts ## Why This Product - Trusted kérastase brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Split-End Savior:** Boosts elasticity and reduces split ends for visibly healthier strands - • **Scalp Revival Power:** Reinforces and nurtures a healthy scalp for unstoppable hair vitality - • **Lightweight Absorption:** Serum texture that sinks in fast, leaving no residue—just pure benefits - • **Nutrient-Dense Formula:** Packed with potent ceramides and active ingredients for deep repair - • **Universal Damage Defense:** Perfect for all damaged hair types craving resilience and shine ## Overview Kérastase Resistance Extentioniste Scalp and Hair Serum is a 50ml powerhouse designed to strengthen damaged hair by reinforcing the scalp and delivering a nutrient-rich formula with ceramides. Lightweight and fast-absorbing, it improves hair elasticity, reduces split ends, and leaves hair smooth and shiny—ideal for professionals seeking salon-quality repair and shine. ## Description Kérastase Resistance Extentioniste Serum is a a highly concentrated serum with key active ingredients that stimulate the growth of strong healthy hair follicles. This energizing leave-in treatment is a key step to reinforce roots and promote a healthy scalp environment. Its non-greasy formula harnesses the power of Ceramides to protect the scalp from environmental aggressors while stimulating and energizing roots. Applied with a gentle scalp massage, it’s ideal to boost and activate the growth of healthy hair to achieve strong long hair. Review: Just Wow 😍 - Making the hair so smooth 😍 Review: Love it - Wooow ## Features - Reinforces and promotes a healthy scalp - Highly concentrated with nutrients and active ingredients - Easily absorbed and infinitely beneficial, a serum is skin care for a sensitive, itchy scalp - Recommended for all types of damaged hair - Gives hair shiny and smooth texture ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07D58FSWY | | Best Sellers Rank | #42,151 in Beauty ( See Top 100 in Beauty ) #212 in Hair Styling Serums | | Brand | KÉRASTASE | | Brand Name | KÉRASTASE | | Customer Reviews | 4.4 out of 5 stars 2,209 Reviews | | Global Trade Identification Number | 03474636636341 | | Hair Type | Damaged | | Hair type | Damaged | | Item Form | Cream | | Item Weight | 50 Grams | | Item form | Cream | | Item weight | 50 Grams | | Manufacturer | L'Oreal | | Manufacturer Part Number | 3474636636341 | | Material Features | Strengthening Ingredients | | Model Number | 3474636636341 | | Number of Items | 1 | | Product Benefits | Strengthens hair growth, heals surface damage, improves elasticity, and reduces split ends. | | Product benefits | Strengthens hair growth, heals surface damage, improves elasticity, and reduces split ends. | | Scent | Unscented | | Scent Name | Unscented | | Special Ingredients | ceramides | | Unit Count | 50.0 Milliliters | ## Product Details - **Brand:** KÉRASTASE - **Hair type:** Damaged - **Item form:** Cream - **Item weight:** 50 Grams - **Product benefits:** Strengthens hair growth, heals surface damage, improves elasticity, and reduces split ends. ## Images ![Extentioniste Serum - Image 1](https://m.media-amazon.com/images/I/51HA-lfBKzL.jpg) ![Extentioniste Serum - Image 2](https://m.media-amazon.com/images/I/61qHifvfF1L.jpg) ![Extentioniste Serum - Image 3](https://m.media-amazon.com/images/I/7103UobWQQL.jpg) ![Extentioniste Serum - Image 4](https://m.media-amazon.com/images/I/816-LVdOYJL.jpg) ![Extentioniste Serum - Image 5](https://m.media-amazon.com/images/I/71G+QDvBxNL.jpg) ## Questions & Answers **Q: What is the difference between Resistance Force Architecte, Extensioniste, and Therapiste?** A: The main difference between these ranges is the level and type of hair damage. Resistance Extentioniste is ideal for slow growing, damaged hair lengths **Q: What is the key ingredient in the Resistance Extentioniste range?** A: The key ingredient is Creatine R, an exclusive complex composed of Creatine an amino acid that reinforces the internal structure of the hair fiber. **Q: Is this product safe for color-treated hair?** A: Yes, this product is safe for color-treated hair ## Customer Reviews ### ⭐⭐⭐⭐⭐ Just Wow 😍 *by A***� on 14 November 2024* Making the hair so smooth 😍 ### ⭐⭐⭐⭐⭐ Love it *by R***N on 11 July 2020* Wooow ### ⭐⭐⭐⭐⭐ Super soft hair *by U***C on 17 May 2023* Amazing product. Well worked for my hairs. Softening from the first usage ## Frequently Bought Together - Kérastase Resistance, Conditioning Leave-In Scalp & Hair Serum, For Long Hair, With Ceramides, Sérum Extentioniste, 50ml - Kerastase Elixir Ultime L'Huile Original Hair Oil For All Hair Types - Hydrates, Strengthens and Adds Shine With Heat Protection and Frizz Control, With Wild Camellia --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/257244121-extentioniste-serum](https://www.desertcart.jp/products/257244121-extentioniste-serum) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-16*