The Nioxin Hair Booster is an intensive leave-in booster, which is used specifically in areas with very thin hair density.
twice daily. Before using the NIOXIN Scalp Treatment, work Hair Booster into the hair from the roots to the ends. Massage with fingertips into areas of thinning hair density and around the hairline.
Due to the high concentration of the active ingredient, temporary redness may occur after application.