• Nioxin System 4: Ideal for weakened and colored hair, offers balanced hydration. • Density-protecting conditioner that improves hair elasticity. • Complete your 3-step Nioxin routine with shampoo and treatment. • How to use: Apply from scalp to ends, leave on for 1 to 3 minutes, and rinse. • #1 in salons for achieving denser hair with more volume. • Designed to strengthen, nourish, and repair fine hair from the root. • Removes grease, fatty acids, and environmental residues that clog follicles. • Provides hair resistance and controls moisture level. • Provides hydration and protects the scalp. • Product dimensions: 4.5 cm wide, 22 cm high, 6 cm long, weight of 0.338 kg.