"Pure MDMA" gets thrown around a lot, but most people don't know the exact concentration, and neither do you, unless you test it. Two capsules with the same street name can have wildly different amounts of actual MDMA inside, and a growing share aren't MDMA at all. Here's what the current data says, and how to stop guessing.
Adulteration is climbing, not falling
According to the EU Drugs Agency's 2026 report, the share of MDMA samples tested by European drug-checking services that came back adulterated jumped from 9% in 2024 to 15% in 2025, with cathinones, cocaine, and ketamine as the most common unexpected finds (EUDA, 2026).
A long running U.S. drug-checking study looking at samples submitted as MDMA between 1999 and 2023 found about half of alleged MDMA samples tested contained only MDMA. There were 199 different adulterants found across the unregulated supply (ScienceDirect, 2024).
What our MDMA Purity Test Kit actually tells you
The MDMA Purity Test Kit uses a reagent that changes colour on contact with your sample. Here's exactly what that gets you:
A relative concentration estimate: the colour intensity (rated on a 1-5 scale, light yellow to dark orange/brown) tells you roughly how much actual MDMA is in your sample.
A way to catch several common cuts: the reagent produces distinct reactions for benzocaine, BZP, mCPP, MDA, paracetamol, phenacetin, and TFMPP, so an off colour or unexpected residue is a real signal something other than MDMA is in your sample.
Fast results: under 5 minutes for an initial read, no extra equipment needed beyond what's in the kit.
If your result looks ambiguous or you want to know what else might be in there, our Multi-Party Test Kit is built to help narrow that down.
Your next steps
1. Test every new batch, even from a source you trust. Purity is inconsistent even within the same supply chain.
2. If your result is ambiguous or the colour doesn't match anything on the chart, don't guess; pair it with the Multi-Party Test Kit or hold off using.
3. Always test for fentanyl with the Fentanyl Test Kit. A small dose could be fatal, so it is best to avoid if present in your sample.