Peptide testing labs compared

A chemical analysis lab in Prague that tests peptides, anabolics, SARMs, and related compounds from anywhere in the world, with card and crypto payment. Its two defining features are breadth (compounds most accredited labs will not touch) and the verification layer: every report carries a task number and unique key anyone can check against the lab's database, plus a public archive of client-published results. That checkability is why Janoshik reports became the market's default proof of quality.

Not a mail-order COA lab: Finnrick collects customer-submitted vials (9,991 tests at last count), runs a free sample-testing program, and publishes the results as vendor safety rankings, funded by memberships. Its leaderboards score vendors on purity above 99.5% and dose accuracy within 35%. Its retatrutide board alone covers 3,691 tests across 256 vendors. Use it to compare vendors before buying; use Janoshik's verify page to check a specific report a vendor hands you.

An ISO/IEC 17025:2017 accredited analytical lab in Olympia, Washington running LC-MS/MS, GC-MS, and ICP-MS, with published prices ($250 HPLC purity, $250 quantity, $150 USP sterility) and a 5-to-8-day turnaround. It also tests supplements, food, and water. The accreditation is its edge: legally defensible paperwork from a US lab. It does not run a public key-verification database, so its COAs travel on the lab's letterhead rather than a checkable code.

A Franklin, Tennessee lab established in 2023, built for vendor volume: 2-to-4-day claimed turnaround, every COA pairing HPLC purity with LC-MS identity confirmation, and 42,000+ public COAs searchable by accession number or company name. Like Janoshik it makes results publicly checkable, which matters more than any speed claim: a Freedom COA can be looked up independently rather than taken on faith.

A Michigan testing service whose analyses run at a partner lab staffed by pharmaceutical QC scientists, using USP/NF-validated HPLC and UV methods. It markets to individual researchers as much as vendors, which makes it a practical option for a US buyer testing a vial they already received without shipping a sample overseas. No public results database is stated, so reports are private to the client.