For inflammation reduction, KPV is very effective. As a straight painkiller and as posted by @CNCCurrency , dermorphin is an unquestionably top-notch powerful analgesic. However you have to be aware that venturing into DR is no joke and more than legally grey. Carefully consider your risk acceptance for a peptide 30-40x stronger than morphine and a little more than half as strong as fent, with rapid addiction potential and intense withdrawal symptoms when regular use is discontinued. The same case of shotgun shells that lets you feed yourself plentifully for a year of cabin-living in the woods is a very different experience if you drop it in a campfire.