It is formulated with active ingredients to repair very dry and damaged hair texture. It gives shine and softness. It cannot be rinsed. Doesn't make hair heavy. Does not leave residue on the hair. Application: Apply a sufficient amount of product on washed and towel-dried hair by massaging with your fingertips and combing gently. Do not rinse. Important warnings: Do not apply the product if the scalp is sensitive or injured. Keep out of reach of children. It is for professional use.