Most users start to see benefits and experience relief within 3 weeks of daily use. Two months is the recommended total program duration that can deliver lasting benefits long after completion. However, some users decide to keep the band for peace of mind or even continue doing the exercises daily. If you’d like to keep the band, just don’t return it - we’ll charge you a total of 4 months (NS Duo) or 3 months (NS Duo Pro) and then the band is yours forever.