Mainstream medicine declares a treatment to be effective only after rigorous studies with statistical analysis of results have been performed. If the study and analysis supports the hypothesis that copper bracelets are effective, the medical community would adopt the treatment into their discipline.
Copper is able to be absorbed through the skin.
Each copper bracelet used in the study had to be of the same metallic composition or make-up. Copper dissolved from the bracelet can penetrate and be absorbed by the skin. Some people felt worse when wearing the copper bracelet. Others felt no different when wearing the bracelet. A few felt better after wearing the bracelet.