CHI Enviro American Smoothing Treatment is a revolutionary safe treatment. It eliminates up to 95% of frizz while making curly hair more manageable. It instantly adds amazing shine, silkiness and condition to the hair. The results of this safe alternative to traditional harsh straightening systems are amazing. The system safely smoothes frizzy, curly hair into beautiful, soft and silky hair. When the powerful, yet gentle, formula is combined with heat from the CHI Iron and dryer the hair is bonded, providing incredible results. This revolutionary smoothing system infuses the unique formula of amino acids, proteins, silk and pearl into the hair’s cuticle. This process dramatically improves the condition, shine and smoothness of even the most unruly hair types. Results typically lasts up to 4 months depending on hair type.