A legitimate vendor will provide or NMR/LC-MS test results for their batches.
While Trustpilot is often used, it can be manipulated. Researchers typically rely on communities like Dread (on the Onion network) or specialized RC forums where users post "landed" reports and warnings about exit scams. best site to buy research chemicals
The gold standard for vetting a vendor isn't the site's own testimonials; it’s third-party verification. A legitimate vendor will provide or NMR/LC-MS test
Sites that look like Amazon for chemicals and offer highly restricted substances (like Schedule I or II drugs) are almost always scams or law enforcement "honey pots." best site to buy research chemicals
It is almost always safer to buy from a vendor within your own country. Crossing international borders (especially through high-scrutiny hubs like the Netherlands or Germany) significantly increases the risk of seizure.