Kérastase Genesis Anti-Hair Loss Fortifying Serum (90 ml)

Kérastase Genesis Anti-Hair Loss Fortifying Serum (90 ml) arrives as a targeted solution for women experiencing brittle, thinning hair and is presented in a convenient 90 ml leave-in formula.

This hair serum is formulated to protect and strengthen weakened hair fibers while addressing signs of hair loss. Its active ingredients include diaminopyrimidine oxide, caffeine, arginine and niacinamide, combined with botanical extracts such as ginger root extract and resveratrol to support scalp vitality and hair resistance.

The lightweight, leave-in texture is alcohol-denatured based and is designed for daily use; the manufacturer recommends applying 3–4 pipettes to dry or towel-dried hair once a day in the morning or before bed, without rinsing. The product’s PAO (period after opening) is 18 months.

As a fortifying treatment, the serum helps reduce hair breakage and improves fiber cohesion, making hair appear fuller and healthier over continued use. It offers protection against mechanical damage and supports the hair’s natural strength with regular application.

Practical everyday scenarios include using the serum after showering on towel-dried hair before styling, applying it as a nightly treatment to support recovery while you sleep, or incorporating it into a haircare routine when preparing for a styling session that may stress fragile strands.

The packaging contains one 90 ml bottle and is intended for women with brittle or thinning hair types who seek a protective, strengthening leave-in treatment to complement other Kérastase care products.

• Product type: Hair serum, leave-in (90 ml)
• Key actives: Diaminopyrimidine oxide, caffeine, arginine, niacinamide
• Use: Apply 3–4 pipettes on dry or towel-dried hair daily, do not rinse
• Benefits: Strengthening, protection, reduced breakage