Instantly protects against hair breakage that can be caused by combing and mechanical damage. Detangles and smoothes the hair. With silk amino acids.Wella FUSION care series enriches the hair with amino acids and repairs the hair fiber to the cortex. For hair as strong as steel and soft as silk with up to 95% more resistance to breakage. Even severely damaged hair feels healthy, elastic and supple again.FUSION - The new technologyinspired by the properties of spider silka fusion of silk amino acids and micro-lipidsfor a resistant, strengthened hair structure