Leeches were used medically for millennia on ancient Earth but were largely superseded by technology. Hundreds of years later, a chance discovery on Kachirigin revealed some very valuable properties of the native creatures. Kachirigin leeches can painlessly filter impurities from the user's blood, so can be used as a cure-all for hangovers and the worst effects of certain addictions. They are prized by the wealthy and hedonistic, and have an almost cult-like following.

This rare good is legal in all systems.

Please note that if a system's controlling faction changes, some formerly legal rare goods may become illegal in that system. If this happens, the rare goods in question will no longer be available for sale or purchase.