The NIOXIN System 1 Scalp Care + Hair Thickening Treatment for Natural/Untreated Hair provides more volume, better shine, and softer hair. System 1 is specially designed for normal to thin-looking, fine, natural hair. It amplifies hair texture while refreshing the scalp and delivering a healthy shine. SPF 15. This professional volumizing scalp and hair leave-in treatment was designed for natural hair with light thinning. It features a Transactive Delivery System 2.0 technology that provides thicker-looking hair by increasing the fullness of each hair strand.
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