The bumble and bumble straight shampoo is the first step towards smooth straight and manageable hair this sulfate free formula may be mild but it packs a punch when it comes to curl busting containing a very rare gemstone blend plus concen straight technology to loosen the hairs natural curves it tames curly thick coarse frizzy and unmanageable locks for lasting softness sleekness and shine massage into wet hair lather up and rinse away thoroughly follow with the bumble and bumble