KÉRASTASE Genesis Hair Serum — Anti-Breakage Scalp Serum, 3.04 fl oz, Lightweight Ginger & Caffeine

KÉRASTASE Genesis Hair Serum is a lightweight, silicone-free daily scalp serum formulated to reduce hair fall from brushing and strengthen weak, brittle strands.

Designed for normal to dry, weakened hair, this fortifying serum targets breakage at the root by anchoring hair fibers to the scalp. Enriched with ginger and caffeine, plus arginine to support scalp circulation, the formula is clinically shown to reduce hair fall from brushing for most users. Its non-greasy texture absorbs quickly so it can be used morning or evening without weighing hair down.

How does this serum reduce hair fall during brushing?

The serum works at the scalp level to reinforce the connection between hair fiber and follicle, improving strand resistance before mechanical stress like brushing occurs. Key actives help condition and support the scalp environment so hair is less prone to snap.

• Contains ginger and caffeine to help strengthen fragile fibers.
• Arginine supports microcirculation around the root for healthier-looking hair.
• Lightweight, non-silicone formula minimizes residue that could weigh hair down.

What’s the right way to apply KÉRASTASE Genesis Hair Serum?

For best results, apply four doses section by section to dry or towel-dried scalp, then massage to distribute. No rinsing is required; use daily for at least six weeks to evaluate improvement in breakage from brushing.

• Apply 4 doses per session directly to scalp areas with low density.
• Massage gently to promote absorption and even coverage.
• Use morning or evening; leave in — do not rinse out after application.

How will this serum fit into my haircare routine?

This serum pairs with the rest of the KÉRASTASE Genesis collection for a complete anti-breakage regimen. For everyday use, follow with styling or thermal protection products as needed; the formula is formulated to be compatible with typical shampoos and conditioners.

• Works well after Bain Nutri-Fortifiant shampoo and Fondant Renforcateur conditioner.
• Can be targeted to thinning areas or used across the whole scalp.
• Lightweight texture allows layering with heat protectants and styling creams.

When will I notice results and are there visible benefits?

Individual results vary, but many users report reduced hair fall from brushing within weeks of regular use. Over time, strands feel stronger and appear healthier due to improved resistance and scalp support.

• Clinical testing shows a reduction in breakage from brushing for most users.
• Expect to use daily for a minimum of six weeks to assess change.
• Visible benefits include fewer snapped ends and more resilient strands.

Who is this for: KÉRASTASE Genesis Hair Serum is aimed at people with weakened, brittle hair who experience breakage when brushing, and those seeking a lightweight, leave-in strengthening treatment. It’s suitable for normal to dry hair looking for targeted reinforcement at the scalp and integrates easily into salon-grade haircare routines.

Ingredients

AQUA / WATER / EAU • ALCOHOL DENAT. • ARGININE • PEG-40 HYDROGENATED CASTOR OIL • CITRIC ACID • NIACINAMIDE • CALCIUM PANTOTHENATE • CAFFEINE • LIMONENE • PYRIDOXINE HCl • LINALOOL • POLYQUATERNIUM-11 • 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