Purity Test Kits
Welcome!
Purity test kits are quantitative test kits that tell you the amount of active ingredient in a drug sample, or the “percentage purity” of the sample. PurityTestKits.com was launched in May of 2025 by DanceSafe founder, Emanuel Sferios, and Matthew Aragón in order to make quantitative drug checking more widely available. Dose matters, yet laboratory testing is prohibitively expensive. At affordable prices, our purity test kits empower consumers by putting overdose prevention directly into their own hands.
Know the Dose Before You Consume
Harm Reduction
Overdose has become a leading cause of death in the US. Even for psychedelics, which have a lower potential to cause harm, consuming too much can sometimes result in hospitalization and psychological trauma. Knowing the dose before you consume reduces the risk and is an essential part of harm reduction.
Benefit Enhancement
As states begin to decriminalize psychedelics, more therapists have begun administering them to patients. Providing the proper dose is essential to maximize therapeutic outcomes. Purity test kits offer an affordable alternative to HPLC, giving more control to patients, providers and commercial producers.
Our Operating Principles
Integrity
Managed by DanceSafe founder and harm reduction pioneer, Emanuel Sferios, PurityTestKits.com is backed by 27 years of drug checking experience. All kits have undergone rigorous laboratory development and validation, ensuring accuracy and reliability. Every batch is quality control tested before being released.
Transparency
Purity test kits provide health and safety information to people about substances they intend to consume. This confers a responsibility upon sellers to be open, honest and available. We welcome all questions and feedback, and will return every email or phone call we receive. Don’t hesitate to contact us.
Affordability
By preventing overdoses and enhancing therapeutic outcomes, purity test kits are public health and safety products that should be widely available to everyone. Cost should not be prohibitive. We guarantee the lowest prices, but if you still can’t afford a kit, please contact us. We can work something out.
Your purchase supports the psychedelic community. We donate 5% of the sale price of every MDMA, LSD and Psilocybin purity test kit sold to the Shulgin Foundation. (Photo of Ann and Sasha Shulgin in 2014, taken by Emanuel Sferios.)
Who We Are
Emanuel Sferios
Operations Management, Customer Service, R&D
Matthew Aragón
Production Management, R&D
Jill Texeira
Operations & Production Assistant
Help Defend Harm Reduction!
A German corporation, Miraculix, is attempting to patent quantitative test kits for nearly all classes of drugs, including opioids, based on colorimetric methods that have been in the scientific literature for nearly a century. See our campaign page on Grassroots Harm Reduction. (Breaking News! The USPTO has rejected their application, but they are still threatening to sue us.)