Kérastase Densifique Densite Hair Mask delivers intensive strengthening and volumizing care for fine, thinning hair. This 200ml treatment mask infuses each strand with densifying actives to restore body, thickness, and resilience. Lightweight yet nourishing, it works to reinforce hair structure and enhance natural volume without weighing strands down. Ideal for daily use as part of a complete Densifique regimen, this mask leaves hair visibly thicker, stronger, and more resilient to breakage.