Nioxin Duo System #1 is designed for normal to thin-looking, fine natural hair. Texture is amplified while maintaining a healthy shine to hair. Scalp is refreshed and revitalized. Gently removes residue from the scalp and hair to promote a healthy scalp environment. Amplifies hair texture while refreshing the scalp. Helps to provide hair resilience and moisture balance control. Reduces breakage and associated hairloss. Nourishes the scalp with essential nutrients to improves the appearance of thinning hair and creates an environment for fuller, healthier looking hair.