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
- After shampooing and conditioning, towel-dry the hair
- Hold the bottle 15–20 cm from the scalp
- Spray evenly across the roots and mid-lengths, focusing on areas where extra fullness is wanted
- Massage gently into the hair with the fingertips to distribute
- Style and blow-dry as usual
- Do not rinse out
- 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
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