This volumizing and thickening blow dry mousse delivers soft, flexible body and bounce to the hair for fuller results. Its lightweight formula provides density without weighing the hair down or leaving it dry or sticky. This volumizing and thickening blow dry mousse delivers soft, flexible body and bounce to the hair for fuller results. Its lightweight formula provides density without weighing the hair down or leaving it dry or sticky. Founded by a team of four world-renowned stylists, IGK creates cutting-edge, cruelty-free hair care products free of parabens and sulfates that keep your hair looking its best, wherever you are.