Why this directory carries no rankings
A ranked list of sellers would be read as an endorsement, and an endorsement of unapproved compounds is something no independent reference site should issue. Ranking would also be unverifiable: what a directory can see is a price list, not a supply chain.
The verification hierarchy
For approved medicines the answer is short: licensed pharmacies dispensing valid prescriptions. For research-grade compounds there is no equivalent assurance - the strongest artefact available is a batch-matched third-party certificate of analysis, and even that can be forged or recycled from an older batch. Treat every quote on this page as a starting point for your own checks, never as a conclusion.
Red flags worth memorising
Dosing protocols printed in marketing copy. Human-use testimonials offered for research chemicals. Prices so low they imply repackaged industrial material. “Pharmacy-grade” language with no pharmacy anywhere in the chain. Blend products with no published combination data. Any one of these is disqualifying on its own.
The regulatory weather
Enforcement around compounded and research-grade peptide supply chains changes constantly, and it changes per jurisdiction. Before you act on anything you read here, check your own regulator's current position - and read the warning material published alongside the compound entries on this site.
Directory data: 15 vendors · 131 products · 1,778 quotes · Last updated: 2026-09-13 · Vendor-published prices, re-checked periodically; accuracy not guaranteed.