KÉRASTASE Genesis Hair Serum — Daily strengthening treatment 1 fl oz, silicone-free lightweight formula

KÉRASTASE Genesis Hair Serum is a daily, silicone-free scalp and hair treatment formulated with ginger and caffeine to fortify weakened strands and reduce breakage from brushing.

This lightweight 1 fl oz serum is designed to strengthen fragile, thinning-prone hair by improving fiber resistance and targeting areas with lower density. It absorbs quickly without leaving residue, making it suitable for morning or evening use. The formula also contains arginine to support circulation at the scalp and can be used alongside other Genesis collection products for a fuller, healthier look.

How does the serum reduce hair fall from brushing?

The serum works directly at the scalp and along the strand to reinforce hair structure and minimize breakage that happens during mechanical stress like brushing. Ginger and caffeine help invigorate the scalp environment while arginine supports healthy circulation to the roots.

• Targets fragile areas to strengthen fibers where breakage is most likely
• Silicone-free, lightweight texture that won’t weigh hair down
• Quick absorption avoids residue that can trap dirt and cause further stress

When and how should I apply the Genesis Hair Serum for best results?

Apply on dry or towel-dried hair, section by section, morning or evening. Use the recommended four doses per application and gently massage the solution in to support even distribution and absorption. Continuous application for at least six weeks is suggested to evaluate improvement.

• Apply 4 doses per session on the scalp in targeted zones
• Massage to promote absorption—do not rinse out
• Use daily for a minimum of 6 weeks for visible reduction in breakage

What results can I expect and how does it fit into my routine?

Most users experience a noticeable drop in hair fall during brushing after regular use, alongside improved strand resilience. It integrates easily with cleansing and conditioning steps and pairs best with the Genesis Bain, Fondant, and Defense Thermique products for a complete regimen.

• Supports stronger, more nourished-looking hair with reduced breakage
• Compliments shampoo, conditioner, and heat defense from the Genesis line
• Suitable for normal to dry weakened hair types seeking reinforcement

Is this serum safe for daily use and targeted application?

The gentle, silicone-free formulation is intended for daily application and can be focused on areas with less density. Its lightweight feel minimizes build-up, and its non-rinse instruction keeps the active ingredients working between washes.

• Daily use recommended; suitable for targeted scalp application
• Non-greasy formula reduces the risk of product buildup
• Designed to be compatible with other styling or treatment products

Who is this for: KÉRASTASE Genesis Hair Serum is aimed at people with weak, brittle, or thinning-prone hair who want to reduce breakage from brushing and improve overall strand resilience. It is appropriate for those seeking a lightweight, non-greasy daily treatment to reinforce hair structure and who plan to use it consistently as part of a broader strengthening routine.

Ingredients

Caffeine