Hair wash using suitable yuko high quality shampoo yuko long lasting treatment deep hair conditioning followed by hair straightening using yuko39s purpose built hair straightening iron yuko long lasting treatment llt is an evolution in deep hair conditioning this 4 step system replenishes damaged hair with essential nutrients fotifies the cuticle and seals in the moisture and maintain the silky texture for 2 3 weeks results can last up to 6 weeks with continued use of home