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Onyx Research COA guide: how our purity testing works
An Onyx Research COA is a certificate of analysis from Freedom Diagnostics, a US lab. This guide shows what each report measures, how to verify one with its search code and where every product stands.
What an Onyx Research COA measures
Each Onyx Research COA comes from two tests run together. HPLC with UV detection separates the sample into its parts and reports the main compound as a percentage of everything detected. That’s the purity figure. Mass spectrometry then weighs the molecules to confirm the peak is the right compound. That’s the identity check.
The report also lists the net peptide content, meaning the measured amount in the vial, plus the lot, the appearance of the powder and the dates the sample was received and reported.
How to verify an Onyx Research COA
- Open the product page and find the purity list, or open the report in the product photos.
- Copy the search code, for example Onyx2511200077 for BPC-157.
- Go to the Freedom Diagnostics website and enter the code in its search.
- Compare the result, dates and product name with what we show.
If anything doesn’t match, email us. A report that anyone can check on the lab’s own site is worth more than a PDF on a store page, which is why we publish the codes.
Onyx Research COA results, highest first
- GHK-Cu 100mg: 99.95%
- GLP-3 RT 30mg: 99.936%
- NAD+ 500mg: 99.931%
- Ipamorelin 10mg: 99.879%
- Selank 5mg: 99.787%
- GLP-2 TZ 10mg: 99.768%
- Wolverine 10mg: 99.72%
- KLOW 80mg: 99.66%
- BPC-157 5mg: 99.627%
- Melanotan 2 10mg: 99.603%
- Epitalon 10mg: 99.571%
- Tesamorelin 10mg: 99.552%
- IGF-1 LR3 1mg: 99.44%
- CJC-1295 DAC 5mg: 99.185%
- CJC-1295 No DAC 5mg: 99.156%
- TB-500: 99.141%
- Semax 5mg: 99.086%
- Cagrilintide 10mg: 99.021%
RAD-140 capsules have a separate report from Vanguard Laboratory, which measured 10mg per capsule. Products without a report, such as MOTS-c and AOD-9604, are labeled 99% purity. Ask us before ordering if you need paperwork for those.
Why purity alone isn’t the whole story
A high HPLC number tells you the sample is mostly one compound. The mass spec line tells you it’s the right one. Net content tells you how much is there. Read all three before you plan concentrations, and keep a copy of the report with your lab notes.
Top-tested Onyx Research products
GHK-Cu Copper Peptide
GLP-3 RT
NAD+ 500mg
BPC-157Onyx Research COA vs label purity
The Onyx Research COA and the label say different things. The label promises 99% purity for every vial. The COA reports what one tested batch actually measured. Most of our results sit well above the label, between 99.02% and 99.95%. For background on how HPLC purity testing works, this PubMed search on HPLC peptide analysis collects the methods papers.
Onyx Research COA FAQ
Which Onyx Research COA results are highest?
GHK-Cu 100mg at 99.95%, GLP-3 RT 30mg at 99.936% and NAD+ at 99.931%.
How do I check an Onyx Research COA?
Copy the search code from the product page and enter it on the Freedom Diagnostics website.
Does every product have a COA?
Most do. Products without one are labeled 99% purity, and you can email us before you order.
What does net peptide content mean?
The measured amount of peptide in the vial, which can differ a little from the label amount.
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Onyx Research products are sold for laboratory research use only. They aren’t for human or veterinary use and haven’t been evaluated by the FDA.