For Fine, Natural, Noticeably Thinning Hair A daily leave-in scalp treatment with SPF 15 sunscreen that protects scalp skin from harmful UVA & UVB rays; while delivering essential botanicals, nutrients, antioxidants & cytokines (proteins) onto the scalp skin & hair to help safeguard against environmental residue & DHT buildup on the scalp. It may cause temporary redness after application. This is developed by Nioxin lab with advanced formula, which are: Bio Amp adds thickness & strength. Activ-Renewal gives a more youthful-looking scalp & fuller, healthier looking hair. Scalp Access Delivery System helps protect nutrients as they moisturize & energize the scalp & hair combined with SPF scalp protection against UV rays. How to use: Apply generously throughout the scalp without over saturating. Comb through with a wide tooth comb. Do not rinse & style as desired. This product takes 3-5 working days to be despatched & NOT AVAILABLE FOR NEXT DAY DELIVERY.