For Chemically Treated Hair with Progressed Thinning. 3-part professional product kit cleans and treats hair and scalp, for denser-looking hair. Increase resilience against cuticle damage and reduce hair loss due to breakage. Deliver smoothing control and added volume with SmoothPlex technology. NIOXIN System Kit 6 NIOXIN System Kit 1 NIOXIN System Kit 2 NIOXIN System Kit 3 NIOXIN System Kit 4 NIOXIN System Kit 5 Supplement with Nucilium-plex Technology supports hair health from inside out. Heat-activated spray leaves hair shiny & protects against damage. Leave-on treatment for areas of concern such as low-density crown or hairline. Take one tablet daily with water, as part of a balanced diet and lifestyle. Spray through towel-dry hair. Blow-dry and flat-iron to activate protection. Distribute through hair twice daily, along hairline and areas of low density. With over 25 years of experience in thinning hair, NIOXIN is supported by the Institute of Trichologists.