The Nioxin’s System 6 Leave-In Scalp & Hair Treatment for Chemically Treated Hair with Progressed Thinning, refresh the scalp and increase your hair volume. This volumizing leave-on treatment foam helps to provide thicker-looking hair by increasing the fullness of each hair strand. Nioxin’s Scalp & Hair Treatment is the final step of the 3-part System, which amplifies hair texture while protecting against breakage. Amplifies hair texture. Volumizing Leave-on scalp treatment foam for Chemically treated hair with Progressed thinning. Protect against hair breakage. Increases volume of each hair strands. Contain Nicotinate. Best results achieved when used 3 steps together. Nioxin is the N°1 Salon Brand for thicker and fuller hair with more than 30 years expertise in thinning hair. HOW TO USE Apply on damp hair & scalp up to 9 pumps evenly on the scalp, massage and comb. Don't rinse. Style as usual. Use daily. Use in combination with Nioxin System 6 Cleanser Shampoo and Scalp Therapy Conditioner.