Researchers from the Mayo Clinic say that wearing ionized bracelets for the treatment of muscle and joint pain is no more effective than wearing placebo bracelets. Authors of the published study randomly assigned 305 participants to wear an ionized bracelet for 28 days and another 305 participants to wear a placebo bracelet for the same duration. The study volunteers were men and women 18 and older who had self-reported musculoskeletal pain at the beginning of the study. Neither the researchers nor the participants knew which volunteers wore an ionized bracelet and which wore a placebo bracelet. Bracelets were worn according to the manufacturer’s recommendations. Both types of bracelets were identical and were supplied by the manufacturer, QT, Inc.