Kérastase Resistance Duo helps to improve elasticity, combat breakage, strengthen weakened hair by reinforcing the fibers from roots to tips. Formulated with powerful amino acids and ceramides to give healthier, softer, and more resilient hair. 

Bundle includes:

• Kérastase Resistance Bain Extentioniste Shampoo
• Kérastase Resistance Fondant Extentioniste Conditioner