Kérastase Genesis Strength & Thickness Boosting Spray 150ml

Kérastase Genesis Strength & Thickness Boosting Spray 150ml is a leave-in styling spray formulated to thicken, strengthen and add volume to fine, thinning hair. Powered by creatine, ginger root extract and expanding polymers, the lightweight spray plumps each hair fibre for a fuller, denser look from the first use — with up to 24 hours of light hold and a non-sticky finish.

About Kérastase

Kérastase is the French luxury haircare house founded in 1964 as part of L'Oréal Professionnel, dedicated to advanced, salon-grade hair science. The Genesis Homme collection is the brand's dedicated men's range, formulated to address hair thinning, weakened strands and loss of density — concerns that grow more common with age and stress.

Key benefits

• Thickens each hair fibre — creatine plumps existing strands for an immediate fuller look
• Strengthens against breakage — supports more resilient hair from root to tip
• Stimulates the scalp — ginger root extract helps boost scalp activity and protect against daily aggressors
• Up to 24-hour volume — long-wearing fullness without weighing the hair down
• Light hold — gives shape and structure without crunch or stiffness
• Non-sticky, fast-absorbing — comfortable everyday wear

Who it's for

This boosting spray is for men with fine, thinning or weakened hair who want a quick, daily styling-and-treatment hybrid. It's particularly suited to those noticing reduced hair density and seeking a leave-in product that styles, strengthens and adds visible volume in a single step. Pairs beautifully with the wider Genesis Homme range for a complete anti-hair-loss routine.

How to use

1. After shampooing and conditioning, towel-dry the hair
2. Hold the bottle 15–20 cm from the scalp
3. Spray evenly across the roots and mid-lengths, focusing on areas where extra fullness is wanted
4. Massage gently into the hair with the fingertips to distribute
5. Style and blow-dry as usual
6. Do not rinse out
7. Use daily for best results

Specifications

• Size: 150ml
• Format: Leave-in thickening spray
• Key actives: Creatine, ginger root extract, expanding polymers
• Hair type: Fine, thinning, weakened hair
• Hold: Light hold; non-sticky
• Wear: Up to 24 hours
• Use: Daily
• Brand: Kérastase
• Range: Genesis Homme