- Kérastase Genesis Fondant Renforcateur Conditioner 75ml: Fortifying anti hair-fall conditioner for weakened hair, prone to falling, provides up to 84% less hair-fall due to breakage* *Brushing test: Bain Nutri-Fortifiant + Masque Reconstituant + Serum Anti-Chute Fortifiant vs Classical Shampoo. Enriched with Edelweiss Native Cells, Ginger Root & Aquaxyl the anti-breakage action helps reinforce the fibre's natural resistance to reduce the risk of hair fall due to breakage. Provides immediate feeling of strength and softness without weighing down the hair