Since 2024 this market has watched name-brand vendors get raided, warned by the FDA, or shut down outright — including some of its biggest names. Meanwhile clone sites imitating legitimate stores multiply faster than anyone can catalog them. So this guide won't hand you a store name and call it advice. It hands you the vetting method we run on all 40 vendors in our directory, so the judgment is yours and portable.
Start with what the vendor can prove
The entire question of where to buy collapses into one demand: batch-matched, independently verifiable lab reports. A vendor either publishes COAs that pair purity with identity testing, carry lot numbers, and resolve in the testing lab's own database — or it's asking you to take purity on faith. Our vendor table's lab-reports column shows who has evidence on file, and most of that column is dashes. That's not a rendering bug; it's the market. What a good report looks like: the five traits.
Then check the store itself
The exact domain. This niche is dense with lookalike domains — clones of real vendors with one letter changed or a different TLD, built to harvest payments. Reach a store through a source you trust (our vendor profiles link only domains we've verified), not through a search ad. Payment methods. Card processing is hard for this industry, so alternatives are common — but crypto-only with no other option removes your only recourse. Reachable humans. We test vendor customer service ourselves (the Service column on the table); a store that can't answer a pre-sales email won't answer a problem email. Price sanity. Our price index shows the market range per compound and vial size; a price at half the market floor is a lottery ticket, not a deal.
The compliance signal most buyers skip
Watch how a store talks. Sites making explicit human-use claims — dosing guides on product pages, "results" testimonials, before/after photos — are advertising their way into enforcement risk, and vendors drawing FDA attention have a way of disappearing with open orders. A store that maintains research-use framing isn't being coy; it's demonstrating it understands the legal terms it operates under. Our compliance tracker logs what we find per vendor, and the scam watch covers active schemes.
How our directory fits in — and its conflict, disclosed
The vendor table ranks by a published Trust Score: verification tier, lab-report recency, screened reviews, price competitiveness. No vendor can pay to move up, ever — paid placements don't exist here. One disclosure we repeat everywhere: this site's operator holds an interest in one listed vendor (marked "Operator-owned" wherever it appears); it receives no scoring preference, and its rank comes from being the only vendor with a published, verifiable COA file. You should weigh that disclosure exactly as skeptically as you'd weigh any store's claims — the paperwork is public so you can.
For research use only. This article is educational and makes no health, dosing, or usage claims of any kind.