System 6 is specially designed for noticeably thinning medium to coarse natural or chemically treated hair it delivers smoothing control to hair while protecting the scalp and restoring moisture balance system 6 contains spf 15 to protect scalp skin from harmful uvauvb rays the kit contains system 6 cleanser 150ml helps to remove follicle clogging sebum fatty acids and environmental residues from the scalp skin and hair cleanses to provide thicker looking hair system 6 scalp revit