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Protect and refresh the scalp with Nioxin's three-part System 4 Scalp & Hair Treatment for colored hair with progressed Thinning. This diameter-increasing leave-in hair and scalp treatment is particularly formulated for colored hair with progressed thinning.
How to use: Apply directly to entire scalp. Gently massage into scalp. Do not rinse. Use daily. May cause temporary redness to scalp after application.