- Kérastase Genesis Bain Hydra-Fortifiant Shampoo 80ml: Kérastase Anti hair-fall fortifying shampoo for weakened hair, prone to falling, provides up to 84% less hair-fall due to breakage* Enriched with Edelweiss Native Cells, Ginger Root & Aquaxyl this shampoo gently clairifies and helps reinforce fibre to reduce the risk of hair fall due to breakage. Removes oil build-up on scalp. Brushing test: Bain Nutri-Fortifiant + Masque Reconstituant + Serum Anti-Chute Fortifiant vs Classical Shampoo