This Nioxin Scalp Treatment System 4 is a daily leave-in scalp treatment with Sunscreen that delivers essential botanicals, nutrients, antioxidants and vitamins onto the scalp and hair to help safeguard against residues and DHT buildup on thescalp. Suitable for fine, noticeably thinning, chemically treated hair. Nine out of ten people report athickening effect when using the daily 3-Part System.

HOW TO USE: Apply Nioxin Scalp Treatment System 4 directly to entire scalp. Gently massage into scalp. Do not rinse.
May cause temporary redness to scalp skin after application.
Only 2-3 pumps needed per application