Kérastase
Genesis
Sérum Fortifiant
Root Strengthening Care | Scalp Serum | Reduced Breakage Support
$64.00
Size: 90ml
Delivered your way—pickup, local drop-off, or shipping
Salon Professional
Authentic Guarantee
Targets The Root
Supports fragile hair from the scalp with daily strengthening care.
Reduces Breakage
Helps support hair prone to breakage from brushing and styling.
Lightweight Serum
Absorbs easily without leaving the scalp or hair feeling greasy.
Designed For
Key Ingredients
Edelweiss Native Cells — Help support resilience in weakened hair.
Ginger Root Extract — Helps care for hair prone to breakage.
Caffeine — Helps energize the look and feel of the scalp and roots.
Arginine — Helps support stronger-feeling hair.
Ginger Root Extract — Helps care for hair prone to breakage.
Caffeine — Helps energize the look and feel of the scalp and roots.
Arginine — Helps support stronger-feeling hair.
How to Use
1. Apply after cleansing and conditioning to towel-dried hair, or use on a dry scalp between washes.
2. Fill the pipette to the black dosage line for one dose.
3. Part the hair and apply directly to the scalp.
4. Use up to 4 doses, concentrating on areas prone to weakness or lower density.
5. Massage into the scalp. Do not rinse.
2. Fill the pipette to the black dosage line for one dose.
3. Part the hair and apply directly to the scalp.
4. Use up to 4 doses, concentrating on areas prone to weakness or lower density.
5. Massage into the scalp. Do not rinse.
Complete Your Routine
Build your complete routine for healthier-looking hair, tailored to your needs.
Designed for weakened hair prone to breakage, Sérum Fortifiant is a daily scalp serum that helps strengthen hair from the root and support more resilient-looking lengths. The lightweight formula absorbs easily and can be used after cleansing or between wash days.
Ingredients may change from time to time. Please refer to product packaging for the most up-to-date ingredient listing. AQUA / WATER / EAU • ALCOHOL DENAT. • DIAMINOPYRIMIDINE OXIDE • AMMONIUM POLYACRYLOYLDIMETHYL TAURATE • AMINOMETHYL PROPANOL • CITRIC ACID • PEG-40 HYDROGENATED CASTOR OIL • PIROCTONE OLAMINE • CAFFEINE • ARGININE • LIMONENE • NIACINAMIDE • PYRIDOXINE HCL • LINALOOL • SAFFLOWER GLUCOSIDE • BENZYL SALICYLATE • COUMARIN • CITRAL • BENZYL ALCOHOL • XYLITYLGLUCOSIDE • CITRONELLOL • BENZYL BENZOATE • ANHYDROXYLITOL • XYLITOL • ZINGIBER OFFICINALE ROOT EXTRACT / GINGER ROOT EXTRACT • RESVERATROL • TOCOPHEROL • SODIUM CITRATE • PARFUM / FRAGRANCE
Orders typically ship within 1–2 business days. Returns are accepted in accordance with our Shipping & Returns policy.
View Shipping & Returns
View Shipping & Returns