How does hair testing work? - Sensitivity Check USA Warning: include(/customers/6/d/b/ Failed to open stream: No such file or directory in /customers/6/d/b/ on line 299 Warning: include(): Failed opening '/customers/6/d/b/' for inclusion (include_path='.:/usr/share/php') in /customers/6/d/b/ on line 299

Hair testing tests a hair sample by using bioresonance feedback to detect reactions and sensitivities against known items.

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