System 6 helps you achieve noticeably smoother and denser-looking hair. System 6 delivers thicker, fuller hair with smooth control by removing follicle-clogging sebum, fatty acids and environmental residues, while restoring the moisture level and providing color protection.
I used this for my boyfriends hair and it made the biggest difference in his texture and scalp!! He loves using it so we are going to order the full size products soon! I highly recommend this.