Schwarzkopf Natural Styling Glamour Wave comes in 4 strengths: 0 (resistant hair), 1 (normal hair), 2 (Tinted/highlighted hair) and 3 (70% highlighted or bleached hair and very porous hair). Built on Schwarzkopf's innovative Hydrowave technology, it locks moisture into the hair and produces a soft, glamorous perm with smooth curls and waves.
