Why test drugs?
As of 2020 only 26% of substances contained pure MDMA and rest either had various adulterants in them or no MDMA at all. (Source: drugsdata.org)
Drug checking is important to determine if your substance is safe & to rule out any possible harmful or undesirable adulterants. It’s common for drugs such as NBOMe to be disguised as LSD , or MDMA to contain no MDMA and instead contain compounds such as caffeine or methamphetamine.
Drug testing with reagent test kits is an effective and important harm reduction strategy which can save lives and possible unexpected & unpleasant experiences.