Revitalize thinning hair with the complete una routine that nourishes and protects. The Nioxin System 1 Scalp + Hair kit for natural hair with light thinning offers a una 3-step solution, which includes a shampoo, a conditioner, and a leave-in treatment, designed to infuse nutrients, antioxidants, and essential plant substances into the hair and scalp. This powerful system removes impurities, clears hair follicles, and restores the appearance of fullness and thickness, leaving hair healthier and more vibrant.