✨ Unlock Your Hair's Potential! Reduces hair loss due to breakage effectively. Achieve thicker, fuller hair with every use! Moisturizes scalp and hair for a luscious look. Experience the magic of Nioxin with this convenient trial kit. Specifically designed for bleached, straightened, or relaxed hair. Hydration Boost Perfect Dimensions Professional Formula Nioxin 3-Part System | System 5 is a professional hair thickening treatment designed for chemically treated hair experiencing progressive thinning. This trial kit hydrates the scalp and hair, reduces breakage, and promotes a fuller appearance from the very first use.