The Nioxin System 3 helps to thicken and re-densify the hair whilst supporting hair colour. Helps to balance the hairs moisture levels and remove fatty acids and residues from the hair. Improves the hairs texture and resilience whilst reducing hair thinning. Step 2 in the full System 3 treatment, the Color Safe Scalp Therapy Revitalizing Conditioner nourishes the hair and optimises it for further treatment. To use: Apply to the scalp and work to the ends. Leave for 1 to 3 minutes before rinsing.