Nioxin’s Cleanser Shampoo System 4 for colored hair with progressed thinning is the first step of a three-part Nioxin regimen, specially formulated to strengthen the hair and amplify hair structure. It prepares hair and scalp for a complete hair thickening treatment with Nioxin’s three-part System 3. This professional derma-purifying Cleanser Shampoo removes dirt, excessive oil and other environmental residues from the scalp and hair. Features & Benefits: - It prepares hair and scalp for a complete hair thickening treatment. - Professional hair and scalp cleansing shampoo for colored hair with progressed thinning. - Nioxin System 4 three-part Nioxin regimen, specially formulated to strengthen the hair and amplify hair structure. - Helps remove dirt, excessive oil and other environmental residues from scalp and hair. - Peppermint oil refreshes your scalp from first use. - Best results achieved when used 3 steps together. To use: Gently massage onto wet hair and scalp. Lather for 1 minute. Rinse thoroughly. Use daily. Use in combination with Nioxin System 4 Scalp Therapy Conditioner plus Scalp and Hair Treatment. Please note: This supersize product does not come with a pump.