Wella Professionals Ultimate Smooth Mask presents una patented technology and is enriched with Squalene and Omega-9. Nourishes hair both inside and out, leaving it softer and visibly shinier. It also strengthens and replenishes the hair's outer barrier. | Perfect for combating frizzy or dry hair. Hair mask suitable for all hair types. Benefits: | Weekly nourishing treatment for frizzy, dull, and damaged hair. Enriched with squalane and omega-9 to deeply nourish hair from within and strengthen and replenish the outer hair barrier. Dermatologically tested and suitable for color-treated hair. For best results, use with a smoothing serum, mask (weekly), or miracle oil.