Repair and hydration shampoo Bond Mainenance No. 4, 250 ml, Olaplex Repair and moisturizing shampoo Bond Mainenance No. 4 Properties: - restores the internal bonds and hydration level, adding shine and flexibility to the hair; - for all hair types. Way of ussage: Use every time you shampoo after rinsing Olaplex No. 3. Massage to create foam, then rinse. Continue with the Olaplex No. 5 conditioner. Presentation: 250 ml