How do you check purity of ecstasy?

To check the purity of ecstasy (MDMA), users often rely on reagent testing kits, which involve mixing a small sample of the substance with specific chemicals that produce color changes indicative of the presence of MDMA or other substances. Some may also use mass spectrometry or infrared spectroscopy in a lab setting for more precise analysis. It's crucial to note that these methods cannot guarantee safety or confirm the absence of harmful adulterants. Always prioritize safety and legality when dealing with substances.