Kerastase Nutritive Masquintense Hair Mask is a luxurious treatment designed to deeply nourish and restore dry, damaged hair. Enriched with proteins and niacinamide, this vegan formula penetrates the hair shaft to repair breakage, enhance elasticity, and restore shine. The mask works to strengthen weakened strands while providing intense hydration, leaving your hair soft, smooth, and manageable. Perfect for those seeking professional-grade hair care that delivers visible results with every application. Apply to damp hair, leave for 15-20 minutes, then rinse thoroughly. Use once or twice weekly for optimal results. 200ml bottle.