Nioxin System 1 Thickening Treatment Progressed Thinning Coloured 200ml/6.7oz

System 1 Treatment is designed for natural, untreated hair with light thinning. Clinically and dermatologically tested, this nourishing and protective leave-on treatment strengthens each strand from within, resulting in thicker, fuller hair. 

Why you'll love it: Nioxin Leave-In Treatment enhances the thickness and fullness of your natural hair. The lightweight formula adds body to your hair, making it look thicker and fuller. Formulated with a powerful blend of niacinamide, wild mint oil and caffeine to help nourish the hair root, stimulate hair follicles and strengthen the hair.