Full transparency
Certificate of Analysis library
Transparency is the product. Every lot below lists its measured purity, identity confirmation, and release date — with a downloadable certificate to archive alongside your data.
Third party testing
Current COAs
Lab results for all products currently listed for sale, because it should always be this easy to verify claims.
Scan the QR code on the COA or use the Report Number and Access Code at the bottom to verify at the independent lab website.
GLP-RT 10MG
GLP-RT 20MG
GLP-RT 60MG
GLP-TZ 40MG
GLP-TZ 40MG
BPC-157 10MG
TB-500 10MG
MOTS-c 40MG
GHK-Cu 100MG
GHK-Cu 50MG
Tesamorelin 10MG
CJC-1295 10MG
Looking for a certificate for a specific lot not shown here? Request it from our team and we’ll send it over.
How to read a COA
Every certificate, decoded
Identity (MS)
Mass spectrometry confirms the compound’s molecular weight matches the expected sequence.
Purity (HPLC)
The percentage of the target peptide in the sample, measured by high-performance liquid chromatography.
Contents (MG)
Mass spectrometry confirms the compound’s molecular weight matches the expected sequence.
Lot & release date
The lot number ties the certificate to your specific vial; the release date shows when testing was completed.
DON’T TRUST – VERIFY
COAs Explained
At a time where fake and altered COAs are becoming increasingly common, here’s how to decipher if a COA is worth the paper it’s printed on.
Batch number, cap color, crimp color should all match the vial you receive.
Actual company name listed. Not "Wholesale" or "Authentichain" as these are 3rd party wholesalers who you don't know.
The photo should have the company label and match the vial you receive.
It seems like a low bar, but the vial should contain the compound that it claims on the label!
Contents can vary, but should be within 10% of stated claim. Overfill doesn't mean free product: it means your measurements will be skewed. Accuracy is the goal!
COA should be verifiable at the lab website by QR code or Report Number. Never trust a static image, always check the lab site to ensure the COA was not altered.
Purity should match the claim! At GreySyn we don't sell anything below 98%, and we always clearly label the compounds so you know.
The date should be relatively recent. A date from several months ago implies a company is trying to pass an old COA as the current batch.