The Bumble & bumble Straight Shampoo is the first step towards smooth, straight & 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 hair's natural curves, it tames curly, thick, coarse, frizzy & unmanageable locks for lasting softness, sleekness & shine. Massage into wet hair, lather up & rinse away thoroughly. Follow with the Bumble & bumble Straight Conditioner.