Nioxin System 2 Kit Tri-Phase Shampoo 300ml Conditioner 300ml Treatment 100ml - advanced thinning kit The Scalp + Hair Thickening System 2 Kit is a complete treatment composed of 3 phases for natural hair subject to advanced thinning. Clinically and dermatologically tested, this set of products promotes hair thickening for denser and more voluminous hair. According to the results of a clinical test, 8 out of 10 users noticed thicker and fuller hair after 30 days. Formulated with an effective combination of niacinamide, biotin, and caffeine, they nourish the roots, stimulate hair follicle growth, and increase hair resilience. The first phase of this treatment begins with the Scalp + Hair Shampoo. In addition to excess sebum, it removes residues from hair follicles, preparing the scalp for the following phases of treatment. Apply the Scalp + Hair Conditioner. This conditioner helps fight frizz, protecting the hair from breakage. Finally, apply the Scalp + Hair Thickening Treatment. In addition to refreshing the scalp, it delivers essential nutrients, antioxidants, and botanical actives to the scalp to nourish and protect it from UV rays.