Through using advanced hair technologies, Nioxin products provide help, and more importantly results, to people experiencing thinning hair. Nioxin's System 5 Scalp Treatment works in conjunction with Nioxin's 3 part treatment system to deliver fuller looking hair, smoothing control and moisture balance to normal to thin looking, medium to coarse, natural or chemically treated hair. It also protects the scalp. Technologies Smooth Plex-Provides moisture balance, smoothing control and reduces hair loss through strengthening resilience against damage and breakage. Transactive Delivery System-Cleans away follicle clogging sebum and environmental residue from scalp leaving skin feeling clean and healthy. Glyco-Shield- Provides protection and moisture balance to chemically treated hair while leaving the scalp feeling rejuvenated and refreshed. Directions For best use, use in conjunction with Nioxin's 3 part daily use treatment. First, cleanse with System 5 Cleanser then apply System 5 Conditioner to wet hair and leave in between 1 and 3 minutes before rinsing out. Finally apply the leave in System 5 Scalp Treatment.