My mum has used the "Pain Away" products that contain Arnica, Rosemary and the usual eucalyptus oil and menthol are available in Australia and penetrate well. The one we both use is a roll-on. The product ingredients and the act of rolling it on is quite soothing for joint and muscular pain. My mum found the magnet treatments didn't do a whole lot. Other family members of mine use the shark cartilage products and swear by them for joint pain.