3D INTENSIVE deep protect density mask by Nioxin. Anti-breakage strengthening treatment, it is a mask for damaged or dyed hair. Helps protect and strengthen hair against external damage and reduces breakage, while being hydrating. It has a DensiProtect technology that, thanks to its light softening agents, protects hair from external damage. Apply after shampooing, massage, leave on for 3-5 minutes and rinse.