The Nioxin System 4 Trial Kit is a 3-step professional hair care system designed to target thinning hair on chemically treated hair with progressed thinning. It includes a cleanser shampoo, conditioner, and leave-in scalp treatment, formulated to address the specific needs of hair that has undergone chemical treatments like perms, coloring, or straightening.
 
Benefits:
Clinically designed to add thickness and fullness to natural hair with progressed thinning, with visible results in just 30 days.
Removes follicle-clogging sebum, fatty acids, and environmental residues from scalp and hair.
Amplifies hair protection and texture against breakage and increases fullness of each hair strand.
Supports a healthy scalp environment for hair growth.

Used for people with noticeable thinning, chemically treated hair