Goldwell’s Kerasilk Control Smoothing Fluid tames rebelliously frizzy, hard-to-control hair, transforming them into silky-smooth, cascading tresses full of shine & vitality. Offering thermal protection to intercept damage caused by heat-powered tools, the lightweight & milky formula preps tresses for styling. Exclusive Kera Shape Technology harnesses a new generation of smoothing ingredients like Glyoxylic Acid, Keratin, & Silk Proteins to penetrate deep into the hair shaft, creating new keratin bonds that stabilise the hair shape for up to five months. Applied to the lengths & ends of damp, towel-dried hair, the leave-in protecting fluid smoothens the rough hair surface for brilliant shine & enviable suppleness.