This Sebastian Professional Penetraitt Shampoo is designed to soothe hair that\'s been damaged from heat styling, chemical treatments, and more. Formulated with an active rescue system, this shampoo helps enrich and repair the hair strand by strand, giving it back its health and shine.Sebastian Professional Penetraitt Shampoo is essential care for your damaged hair, to strengthen any look, any time while removing and guarding it from stress caused from past chemical treatments and heat damage. Sebastian comes to your hair\'s rescue with this colour safe and deep conditioning, fortifying and strengthening shampoo.Directions of use:Massage into wet hair to activate the rich lather.Rinse thoroughly.Repeat if necessary.Follow with Penetraitt Conditioner.