The Brazilian Keratin Treatment that Enhances, Restores and Improves Hair A Brazilian keratin treatment is strictly for people who love their hair. People looking for lustrous, smooth, and healthy tresses who would like to get rid of their curly and unmanageable hair using an amazing new treatment have come to the right place. What Is The Brazilian Keratin Treatment? A keratin treatment is a Brazilian straightening and smoothing treatment that creates impossibly shiny, frizz free and healthy hair. The most important characteristic of a keratin treatment is that it is avoids the use of any harsh chemicals and contains natural ingredients like keratin, a protein which is actually the major.