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  • Endurance Research
    Endurance Research
    (503) 639-9562
    PO BOX 230489, 97281-0489  Portland

    Endurance Products Company is an exclusive marketing affiliate of Innovite, Incorporated Since 1976 Innovite has been a custom manufacturer of bulk nutritional supplements, specializing in advanced tabletting technology. One area of concentrated effort has been the development of effective Sustaine…