ULTIMATE SMOOTH from Wella Professionals nourishes hair in just 30 seconds, with a smoothness that lasts up to 3 days*. Designed for those who want to control their frizzy, dry or dull hair. With more than 140 years of hair expertise, our scientists have combined Squalane and Omega 9 into a patented technology to nourish hair inside-out. * When using ULTIMATE SMOOTH Miracle Oil Serum if unwashed for 3 days vs untreated TEST RESULTS ULTIMATE SMOOTH Hair Mask deeply smooths, nourishes and adds shine. With a patented technology that combines Squalane and Omega-9. HAIR MASK: Nourishing weekly hair treatment for dull, damaged & frizzy hair. ANTI FRIZZ: With Squalane & Omega 9 to deeply nourish hair inside & replenish hair outside.