Certificate of Analysis Labs
Verify what you buy. These independent third-party labs can test your peptides for purity and identity. You may use any reputable lab — these are commonly used by the community.
Widely recognized in the research peptide community for HPLC purity testing and mass spectrometry. Fast turnaround and publicly verifiable results.
Independent analytical testing lab specializing in chromatographic analysis. Growing reputation in the peptide testing space.
Independent Laboratory Services offering a range of analytical testing options for research compounds.
What is a Certificate of Analysis?
Purity Testing
HPLC (High-Performance Liquid Chromatography) determines the percentage of the target peptide vs. impurities. Look for ≥98% purity.
Identity Verification
Mass spectrometry confirms the molecular weight matches the expected peptide. This verifies you received the right compound.
Batch Tracking
CoAs link a specific batch number to test results, creating accountability. Always check that the batch number on the CoA matches your vial.
Important Notes
- • PeptShop does not have formal partnerships with any lab. These are community recommendations, not endorsements.
- • You may use any reputable lab that is accessible to you — these are not the only options.
- • Vendors are responsible for obtaining and displaying CoAs. PeptShop verifies that CoAs are present, not that the lab results are accurate.
- • Always cross-reference batch numbers on the CoA with the product you received.
- • For research use only. These compounds are not intended for human consumption.