Goldwell Bond Pro Repair & Structure Spray is a leave in spray for weak, fraglie hair, blended with microPROtec complex and Inter-Amino-Bond-Builder. Instantly provides long lasting cuticle protection and resilience against day-to-day stressors. Smooths the sureface and preps the hair for styling. Provides heat protection. Shake well. Spray on towel-dried hair. Leave in.