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What is Amazon Professional Beauty? Amazon has curated a selection of high-quality products that can be found in professional settings such as salons, spas, and dermatology offices. To buy Professional items, just look for the Professional Beauty badge. Professional Beauty Disclaimer: Content on this site is for reference purposes only and is not a substitute for advice from a licensed health-care professional. You should not rely solely on this content, and Amazon assumes no liability for inaccuracies. Always read labels and instructions before using a product. Refresh the scalp and increase your hair volume with Nioxin’s System 5 Leave-In Scalp & Hair Treatment for Chemically Treated Hair with Light Thinning. Thanks to its Transactive Delivery System 2.0, this professional product refreshes the scalp and gives a healthy shine to your hair. The volumizing Nioxin leave-on treatment helps provide thicker-looking hair by increasing the fullness of each hair strand. Nioxin’s Scalp & Hair Treatment is the final step of the 3-part System, which amplifies hair texture while protecting against breakage. Nioxin is the only salon brand with 25+ years of experience in thinning hair. Nioxin, supported by The Institute of Trichologists, believes the scalp is an extension of facial skin and requires the same attention and care.







