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.
Professional vendors market their products strictly for "in vitro" research and use chemical nomenclature. Sites using flashy "street" branding or names like "Spice" or "Bath Salts" are usually low-quality and dangerous. Essential Safety Note best site to buy research chemicals
Even if a chemical is not specifically listed as illegal, the Federal Analogue Act (in the US) and similar laws elsewhere can treat "substantially similar" compounds as controlled substances if intended for human consumption. Always research your local laws before ordering. While Trustpilot is often used, it can be manipulated
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. Sites using flashy "street" branding or names like
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."
A legitimate vendor will provide or NMR/LC-MS test results for their batches.
Because these chemicals are often in a legal gray area (or governed by "analogue acts"), shipping is the biggest hurdle.