Strengthen and protect damaged, thinning hair with Nioxin 3D Intensive Deep Protect Density Mask. This lightweight, density-protecting hair mask provides maximum protection and reduces breakage for smoother, more manageable hair. Nioxin 3D Intensive Deep Protect Density Mask strengthens and protects damaged hair. This professional treatment for thinning hair uses Densiprotect Technology to deeply condition dry or coloured hair. It pr s maximum protection and reduces breakage by strengthening the hair shaft against damage. Nioxin\'s lightweight, density-protecting hair mask delivers smoothness and manageability to the hair. Key Features of Nioxin 3D Deep Protect Mask Lightweight hair mask for thinning hair Strengthens and protects Deeply conditions dry and coloured hair Protects against breakage Strengthens the hair shaft For smoother, more manageable hair