What is it? 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.

Featured ingredients: 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.

Benefits:

• THICKENS THE HAIR: clinically designed to add thickness and fullness to natural hair with light thinning, with visible results in just 30 days.
  
• SUPPORTS SCALP HEALTH: The advanced formula gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles.
  
• REDUCES HAIR THINNING: helps minimize hair breakage, promoting the appearance of fuller, thicker hair.
  
• NOURISHES THE SCALP: Infused with antioxidants and UV-protecting-ting ingredients, tTreTreatmentewill not nourish and revitalize the scalp, improving its overall health and condition.

85% of consumers noticed a thickening effect with our hair-thickening products

80% noticed an increase in hair density

80% noticed an increase in hair fullness