Ouidad's Climate Control Defrizzing Shampoo is a gentle, sulfate-free cleanser designed to provide long lasting protection from frizz and flyaways. Ouidad's exclusive Humidity Shield Complex combines a unique blend of moisturizers that encapsulate the hair shaft and act as a protective barrier against heat, humidity and other environmental factors. The breathable, weightless formula works to protect curls and maintain color without stressing the hair. For best results, follow with Climate Control Conditioner and Styling products. Safe for use on chemically-treated hair.