Protect and refresh the scalp with Nioxin's System 4 Scalp & Hair Treatment for Colored Hair with Progressed Thinning. Part of the improved 3-Part System Kits that enable women and men to have thicker, fuller hair without ever compromising on colour, the formula features NEW Pro-Shield Technology for enhanced colour protection and colour longevity. The diameter-increasing leave-in hair and scalp treatment is formulated especially with coloured hair in mind. With Scalp Access 2.0 technology to help prevent hair loss due to breakage, the formula also provides a refreshed scalp environment. The final step of the 3-part Nioxin treatment, it's designed to strengthen the hair and amplify hair structure.

See product for detailed ingredients.