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Independent lab
Testing is performed by a named, genuinely third-party laboratory — not the supplier's own lab, and not a lab the supplier recommends.
Independent · Evidence-based
Straight answers about peptides in Canada — from people who don't sell them.
PeptideCheck rates Canadian vendors on real, third-party lab verification, and explains the law and the science in plain English. We check the sellers — so you can better evaluate the documentation behind the vial. No storefront. No spin.
✓ Methodology published✓ Wild Rose relationship disclosed✓ Updated continuously
We don't sell peptides. We rate the people who do.
Most “best vendor” lists are written by sellers or affiliates. We're built the opposite way: independent of the storefront, funded transparently, and structured so no vendor can buy a better rating.
How we stay independent →Independence firewall
Money can fund testing or verification — it can never buy, or improve, a rating. The Wild Rose Peptides relationship is disclosed plainly, and any commercial relationship is handled the same way.
The Standard
Factual, verifiable criteria
Every vendor we list is checked against the same factual, verifiable criteria — independent lab, batch-specific Certificate of Analysis (COA), lot-matchable reports, identity and purity testing, and a real Canadian presence. A vendor meets a criterion or it doesn't, and we show the evidence.
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Batch-specific Certificate of Analysis (COA)
A COA exists for the actual production lot — public, downloadable, and reasonably recent — not a generic or one-time sample.
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Lot-matchable
The lot number on the product matches the lot number on the report, and the report can be verified at the issuing laboratory.
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Identity & purity
Identity is confirmed by mass spectrometry and purity is quantified by HPLC, with the results reported.
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Verifiable presence
A real, checkable Canadian presence — contact details and shipping reality, not a paper address.
Canadian vendor ratings
Assessments are being published on a rolling basis
We'd rather get each one right than rush a long list, so the directory will grow as verifications are completed.
Ascension Peptides
Vendor claims and public documentation are under review.
View assessment →VPeptide
Publicly states every batch is Janoshik-tested and describes a lab-results / verification workflow.
View assessment →Great Northern Peptides
Publicly states testing by Freedom Labs (USA), including HPLC + MS.
View assessment →Start here
Understand it before you buy it
Plain-English, citation-backed guides — written to inform, not to sell.
Regulation
Is it legal in Canada?
What Health Canada's position actually means and why “research use only” is not a loophole.
Beginner
New to peptides? Start here.
The vocabulary, the categories, and the questions worth asking.
Verification
How to read a Certificate of Analysis (COA)
What each part of a lab report means and how to verify a report.
Verification
How to spot a fake COA
The red flags of recycled PDFs, borrowed logos, and unverifiable labs.
Published methodology
The criteria and how we apply them are public.
Batch-level verification
We assess the report tied to the actual lot.
Transparent funding
Money can fund testing or verification — never a rating.
Independent of sellers
We do not operate as a storefront.
When the rules change, you'll know.
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