Gentle is in - thanks to our targeted soothing and refined conditioner SMOOTH.AGAIN.RINSE. Created to nourish and soften thick, coarse hair. For this we use cation technology with ions. Keratin proteins imitate the structure of the hair's natural proteins to soften and refine the hair exactly where it is needed. This powerful softening conditioner also gives hair a protective layer to seal thin split ends and prevent frizz.