I'm kind of curly, dry and I colored hair. I also have a Brazilian smoothing (every 6 months). I bought this to supplement my Renpure products and maintain my smoothing between two Brazilian smoothing. The product is easy to apply. There is a manual in French. It makes them very soft hair, really nice. However, I do not get the desired effect. Smoothing is not particularly remarkable. I will continue to use it as a care, but I do not Rasht.