Nature Smooth Express Treatment is the future of the smoothing category. This semi-organic formula allows you to maintain natural texture while increasing elasticity, manageability, shine and overall quality of hair. Nature Smooth’s dynamic heat technology allows for results to last between 1-6 months. Nature Smooth meets OSHA and FDA standards. This advanced formula and application allow for no fumes and a potential service time of under 1 hour. Discover Nature’s Smoothing Secret.