--- product_id: 194134755 title: "Kerastase Genesis Hair Serum – Daily Strengthening Treatment | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair" brand: "kérastase" price: "$134.36" currency: USD in_stock: true reviews_count: 13 category: "Kérastase" url: https://www.desertcart.us/products/194134755-kerastase-genesis-hair-serum-daily-strengthening-treatment-serum-fortifiant-nourishes store_origin: US region: United States of America --- # Lightweight, non-greasy formula Ginger & caffeine boost 97% less hair fall Kerastase Genesis Hair Serum – Daily Strengthening Treatment | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair **Brand:** kérastase **Price:** $134.36 **Availability:** ✅ In Stock ## Summary > 💥 Unlock your hair’s full potential with every drop! ## Quick Answers - **What is this?** Kerastase Genesis Hair Serum – Daily Strengthening Treatment | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair by kérastase - **How much does it cost?** $134.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/194134755-kerastase-genesis-hair-serum-daily-strengthening-treatment-serum-fortifiant-nourishes) ## 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 - • **Complete Haircare Ritual:** Pair with the Genesis Bain Nutri-Fortifiant Shampoo and Conditioner for a full-strengthening haircare experience. - • **Power-Packed Natural Boost:** Infused with ginger and caffeine to stimulate roots and promote healthier, thicker hair growth. - • **Silicone-Free & Weightless:** Enjoy a non-greasy, residue-free finish that keeps your hair feeling fresh and light all day. - • **Strengthen & Fortify Daily:** Clinically proven to reduce hair breakage by 97%, giving your hair the resilience it deserves. - • **Targeted Scalp Nourishment:** Arginine enhances blood flow to hair roots, revitalizing weak, brittle strands where you need it most. ## Overview Kerastase Genesis Hair Serum is a daily, silicone-free strengthening treatment designed to reduce hair fall by 97% due to breakage. Enriched with ginger, caffeine, and arginine, it nourishes weak, brittle hair by stimulating roots and improving resistance. Its lightweight, non-greasy formula absorbs quickly without residue, making it ideal for normal to dry weakened hair. For best results, use consistently with the Genesis shampoo and conditioner. ## Description desertcart.com: Kerastase Genesis Hair Serum – Daily Strengthening Treatment 3.04 Fl Oz | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair : Beauty & Personal Care Review: Love the Results - ve been using this hair serum for a few weeks, and I really like it. It makes my hair feel softer, smoother, and helps reduce frizz without feeling greasy. A little goes a long way, and it has a pleasant scent. I would definitely purchase it again. Review: Amazing serum for healthier hair! - really love this serum! It makes my hair feel stronger, softer, and healthier. It is lightweight, smells amazing, and doesn’t leave my hair greasy. I’m very happy with the results and would definitely recommend it. ⭐⭐⭐⭐⭐ ## Features - Fortifiant Hair Serum: A daily strengthening serum designed to prevent hair fall due to breakage from brushing. Enriched with ginger and caffeine treatment improves resistance in weak brittle hair - Benefit: After use, 97% experience less hair fall due to breakage from brushing. Serum fortifies & strengthens to create nourished & healthy hair. Lightweight formula that will not leave residue - Additional Benefits: Contains Arginine, an ingredient that helps stimulate healthy hair by supporting strong blood flow to the root of hair cells. Can be targeted to areas with less density - Suggested Use: Use morning or evening for a minimum of 6 weeks. Apply 4 doses on dry or towel-dried scalp section by section. Massage to promote distribution and absorption into hair. Do not rinse. - Genesis Collection: Use with Bain Nutri-Fortifiant Shampoo, Fondant Renforcateur Conditioner, and Defense Thermique Primer for nourished healthy-looking hair with reduced breakage. Ideal for normal to dry weakened hair. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086TPQJTT | | Best Sellers Rank | #769 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #17 in Hair Regrowth Treatments | | Brand | KÉRASTASE | | Brand Name | KÉRASTASE | | Customer Reviews | 4.5 out of 5 stars 2,639 Reviews | | Hair Type | All | | Item Form | Oil | | Item Highlight | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair | | Manufacturer | Kerastase | | Manufacturer Part Number | 884486448149 | | Number of Items | 1 | | Product Benefits | Reduces hair fall by 97% and strengthens roots with Ginger & Caffeine. Silicone-free, weightless & non-greasy. Product Benefits Reduces hair fall by 97% and strengthens roots with Ginger & Caffeine. Silicone-free, weightless & non-greasy. See more | | Scent | floral | | Scent Name | floral | | UPC | 884486448149 | | Unit Count | 3.04 Fluid Ounces | ## Product Details - **Brand:** KÉRASTASE - **Hair Type:** All - **Item Form:** Oil - **Scent:** floral ## Images ![Kerastase Genesis Hair Serum – Daily Strengthening Treatment | Serum fortifiant, nourishes and reinforces, anti-breakage, silicone-free, for weak hair - Image 1](https://m.media-amazon.com/images/I/31BRybf+ugL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will this make my roots greasy?** A: The Serum Fortifiant is a silicone-free, lightweight formula designed to absorb quickly into the scalp without leaving residue or oiliness. **Q: How much should I use per application?** A: Fill the pipette to the black dosage line. This equals one dose. We recommend using 4 doses to cover the entire scalp. **Q: Can I use this on dry hair?** A: Yes, the serum can be applied to both towel-dried hair after washing or dry hair on non-wash days. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Love the Results *by B***L on July 25, 2026* ve been using this hair serum for a few weeks, and I really like it. It makes my hair feel softer, smoother, and helps reduce frizz without feeling greasy. A little goes a long way, and it has a pleasant scent. I would definitely purchase it again. ### ⭐⭐⭐⭐⭐ Amazing serum for healthier hair! *by M***L on August 12, 2026* really love this serum! It makes my hair feel stronger, softer, and healthier. It is lightweight, smells amazing, and doesn’t leave my hair greasy. I’m very happy with the results and would definitely recommend it. ⭐⭐⭐⭐⭐ ### ⭐⭐⭐⭐⭐ Best anti shedding serum! *by A***R on July 14, 2026* I hope that I am not speaking too son but this stuff is liquid gold. I am very hesitant about putting stuff in my hair because I suffered from a protein overload and Covid years back and lost half the hair on my head. It has been frustrating trying to get my density back and TikTok just makes advice overwhelming. I finally stumbled upon this serum and was expecting it to take awhile to work. I usually lose a bunch of hair in the shower due to it being up all day at work, and only washing it maybe twice a week. When I tell you that I literally only lost 2 strands I was baffled. I constantly have to keep pulling hair out of my head constantly to get all the fall out out. I also shed ALOT when brushing it wet- and I am gentle. I didn’t have ANY HAIR in my hair brush. And this was the first night of me using it. I am definitely going to keep buying this and see if it was just a fluke my hair did or if it’s genuinely the serum. But I am super impressed. FYI this serum is for retaining hair and minimizing shedding, NOT hair growth! ## Frequently Bought Together - Kerastase Genesis Hair Serum | Daily Strengthening Treatment for Weak or Damaged Hair | Nourishes and Reinforces Hair | Anti-Breakage | Silicone-Free | For Weakened Hair | Serum Fortifiant - Kerastase Elixir Ultime Refillable Hair Oil - Hydrates & Smoothes Frizz, Adds Shine, With Wild Camellia, Nourishes & Strengthens Hair - Kerastase Nutritive 8HR Magic Night Hair Serum - Overnight Beauty Sleep Nourishing Serum, Deeply Conditions, Reduces Tangles & Prevents Frizz, For All Hair Types --- ## 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.us/products/194134755-kerastase-genesis-hair-serum-daily-strengthening-treatment-serum-fortifiant-nourishes](https://www.desertcart.us/products/194134755-kerastase-genesis-hair-serum-daily-strengthening-treatment-serum-fortifiant-nourishes) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-24*