Testing
We take purity testing very seriously because your trust is our top priority. All of our peptides undergo rigorous third-party purity testing conducted by Janoshik Analytics, a leading independent lab in the industry.
To ensure the most accurate and up-to-date information, no Certificate of Analysis (COA) is older than three months.
You can independently verify our test results directly through Janoshik's official verification portal.
Verify with JanoshikFor more details on how our peptides are manufactured and tested.
Visit About Us- On this page
- At the bottom of each product listing
Can't find a COA? Email sales@primepeptidesco.com with your batch number.
Certificates of Analysis
By Peptide
Frequently Asked Questions
Who tests Prime Peptides products?
All peptides undergo rigorous third-party purity testing conducted by Janoshik Analytics, a leading independent laboratory in the industry.
How often are COAs updated?
No Certificate of Analysis is older than three months. We retest every batch to ensure the most accurate and up-to-date purity information.
Can I independently verify test results?
Yes. You can verify our test results directly through Janoshik Analytics' official verification portal at janoshik.com/verify.
Where can I find the COA for my product?
COAs are available on this testing page and at the bottom of each product listing. If you cannot find a COA, email sales@primepeptidesco.com with your batch number.
What purity level do your peptides achieve?
Our peptides consistently achieve 98%+ purity as verified by independent third-party testing from Janoshik Analytics.