Alternatives to Janoshik
Janoshik is the reference point. It is the most searched laboratory in this directory by an order of magnitude, it publishes a price for every compound it will run, and it keeps a public results archive so a certificate can be checked against the laboratory's own record rather than taken on trust. Most vendor certificates in this market are Janoshik certificates.
People still look for alternatives, and they tend to do it for four specific reasons rather than out of dissatisfaction: the sample has to cross to Europe, there is no ISO 17025 accreditation, there is no individual semaglutide, tirzepatide or retatrutide test, and the turnaround is not contractually fixed. Each of those has a different answer below.
Who is in this table. Laboratories that solve at least one of Janoshik's four specific limitations and publish enough to be compared against it. Janoshik itself is included as the baseline, first.
| Laboratory | One peptide | Turnaround | Country | ISO 17025 | Public COA lookup |
|---|---|---|---|---|---|
 Janoshik Analytical | US$215–$450, per compound | Not published as a fixed window | Czech Republic | No | Yes |
 Chromate | US$180 per sample | Not published as a fixed window | United States | No | Yes |
 Prodigy Labs | US$195 per sample | 5–7 business days, up to about 15 for a release panel | United States | Accredited | No |
 Accumark Labs | US$250 per sample | 48–72 hours standard; 14 days for compendial sterility | United States | No | Yes |
 Freedom Diagnostics Testing | Quoted per job | 2–4 days average | United States | No | Yes |
 SideChain Analytics | Quoted per job | About 5 business days after sample receipt | Canada | No | Yes |
Every figure is read from the laboratory's own published information and links through to the full record. Prices are quoted in the currency each laboratory uses and are never converted.
If the problem is the border
A sample going to Janoshik leaves North America. Budget for international transit, a customs declaration and US$50 to US$75 in shipping on top of the test.
Freedom Diagnostics in Tennessee has the fastest published turnaround in this directory at two to four days, puts HPLC purity and LC-MS identity on every certificate rather than one without the other, and runs a public archive of more than 42,000 certificates searchable by company name as well as by accession number. That last part is unusual: most verification portals confirm a certificate you already hold, while this one lets you look up a vendor you have never bought from.
For a Canadian sample the border is still there, just closer. The genuinely domestic option is a Canadian laboratory, which is a separate page.
If the problem is accreditation
Janoshik holds no ISO 17025 accreditation, and this is the most persistent criticism made of it. For most research purposes that matters less than the public archive does, but if the result has to survive an audit it matters entirely.
Three laboratories in this directory hold accreditation from a named body with a published scope. Prodigy Labs is accredited through PJLA and is the only entry that is both accredited and publishes a full price list, from US$195. Vanguard is accredited through A2LA with a scope you can read before committing. Ethos Analytics publishes its accreditation and certificate numbers but never names the accrediting body, which is a weaker position than the other two.
Accreditation is scope-specific. Confirm the particular method you need is on the published scope rather than assuming the badge covers everything the laboratory runs.
If the problem is that there is no individual GLP-1 test
This surprises people. Janoshik does not publish a single-compound analysis for semaglutide, tirzepatide or retatrutide. The published route for those is a US$360 blind test that identifies which of the three a sample actually contains, which is a different question from confirming the one you were sold.
If you want a named GLP-1 assay with a price against it, Chromate lists semaglutide, tirzepatide and retatrutide at US$300 each and the newer agonists at US$380. Accumark charges a flat US$250 for any peptide on the deliberate argument that instrument time does not vary by how fashionable a compound is. Several Canadian laboratories run them at CA$249.
If the problem is that you cannot prove the certificate is real
This one is not a problem with Janoshik, which is among the minority here running a public lookup. It is worth stating because it is the reason to prefer Janoshik over several cheaper options.
Accumark goes further than a lookup: every report lives at a cryptographically signed, timestamped URL rendered from the laboratory's own LIMS, with an interactive chromatogram viewer, on the argument that a PDF is a claim rather than proof. If you are a vendor who needs customers to authenticate a certificate independently, that is the strongest position in this directory.
Common questions
Is Janoshik ISO 17025 accredited?
No. It holds no accreditation from a named body, which is the criticism most often made of it. It offsets that with a published per-compound price list and a public results archive, neither of which most accredited laboratories offer.
Can Janoshik test semaglutide or tirzepatide?
Not as a named single-compound test. The published route is a US$360 blind test across semaglutide, tirzepatide and retatrutide, which tells you which one is present rather than confirming the one you expected. Several other laboratories in this directory price those compounds individually.
What is the closest equivalent to Janoshik in North America?
Freedom Diagnostics on the public-archive question, since both publish results anyone can search, and Freedom is considerably faster. On published per-compound pricing the closest is Chromate. Neither is accredited either; for that you want Prodigy Labs or Vanguard.
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Volta Peptides has no commercial relationship with any laboratory listed here and receives no referral fee. Listing is not endorsement, and details are the laboratories' own published claims rather than facts we have audited.