Thicker, fuller hair in 30 days. Trial the Nioxin 3-step professional system with this 150ml shampoo, 150ml conditioner, and 50ml leave-on treatment, clinically designed to target light thinning for colour-treated or dry, damaged hair. Nioxin Pro Clinical's System Kit 3 is designed for dry, damaged, coloured hair with light thinning. Clinically and dermatologically tested, this complete scalp & hair thickening system thickens and strengthens your hair against breakage while providing colour protection. 8 out 10 users saw thicker, fuller hair in 30 days!