The Brazilian hair straightening is an innovative system that will restructure your hair while refining its texture. Frizzy, wavy and curly hair can improve both appearance and manageability. The formula coats the hair with a biopolymer and smoothes out the roughness of the cuticle while sealing in moisture, which is what gives the hair a shiny, glossy finish. It's a treatment more like a protective coating on the hair. That's why it's better than the Japanese thermal reconditioning because this does not change the structure of the hair. You can use it on color-treated hair. You can use it on chemically treated hair. In fact, it helps seal in the color. And you can use it on black hair without damaging it. You can't really do that over and over with thermal reconditioning."