Warming patch to provide pain relief by proportioning 8 hours of constant and penetrating warmth when placed on contracted muscles. The warmth generated by activated carbon & iron powder natural thermal ingredients, stimulates blood circulation, allowing a blood flow enriched with oxygen and nutrients which relaxes tense and contracted muscles. The patch needs to be applied directly on the skin using for this purpose an adhesive appropriate for using on human skin which assures perfect adhesion of the patch during min. 8 hours. Easy application, no adhesive remains. Used on lower back area, shoulders or neck area.