Kerastase Genesis Fondant Renforcateur Conditioner is sulfate-free. Strengthen and hydrate hair with a lightweight conditioner designed to improve smoothness. manageability. and resilience. This fortifying formula helps reduce the feeling of fragility while enhancing shine and softness without weighing hair down. Infused with nourishing ingredients. it provides moisture while supporting the look of stronger. more resilient strands. Ideal for hair prone to breakage from brushing. it leaves hair feeling silky. detangled. and full of vitality.