Wella Professionals Ultimate Smooth Mask nourishes hair in just 30 seconds, delivering smoothness that lasts up to 3 days. This mask is designed for those seeking to control frizzy dry or dull hair. Building on over 140 years of hair expertise our scientists have developed a patented technology combining Squalane and Omega 9 to nourish hair from the inside out. The Ultimate Smooth Hair Mask deeply smooths nourishes and adds shine. This nourishing weekly hair treatment is ideal for dull damaged and frizzy hair offering anti frizz benefits with Squalane and Omega 9 to deeply nourish hair inside and replenish hair outside.