Me again (I posted the original thread). Thanks for all the replys. Still not comfortable heating the product. I find that 2 or 3 extra strength advils go a long way in reducing the pain and inflamation. Plus I've been injecting symetrically in my shoulders and butt, so the inflammation looks damn good. I'll try biceps next. More opinions on whether or not heating the gear will damage it would be appreciated. Thanks again.