Independent testing, published lot by lot.
A sample from every lot goes to a third-party laboratory before it's released for sale. The results are logged against the lot number on your vial, so you can check them whenever you like.
Look Up a COA- HPLC purity testing
- Mass-spec identity confirmation
- Endotoxin screening
Every lot sampled
A sample from each incoming lot is pulled before it's released for sale.
Independent laboratory
Analysis is done by a third-party lab, not by us.
Reports by lot number
Each Certificate of Analysis is logged against its lot.
Open to everyone
Look up any lot's results — no request required.
Your lot number is the key to its report.
Each vial is labeled with a lot number. Enter it in the COA lookup and the Certificate of Analysis for that exact lot comes up.
Purity. Identity. Safety screening. Documented.
Every report ties back to a single lot, so what you read is what's in the vial in front of you.
HPLC purity
High-performance liquid chromatography measures how pure the lot is.
Mass-spec identity
Mass spectrometry confirms the compound is what it should be.
Endotoxin screening
Each lot is screened for bacterial endotoxin levels.
Dated reports
Reports show when the lot was tested and the results found.
From incoming lot to published report.
Three steps, the same for every lot we sell.
Incoming sample
A sample from every incoming lot is pulled before inventory is released.
Independent analysis
A third-party laboratory runs purity, identity, and endotoxin testing on the sample.
COA published
Results are logged against the lot number and available for lookup — no request required.
Look up a report or browse the catalog.
All products are for laboratory research use only.
Find your lot's report
Search by lot number and download the Certificate of Analysis.
Look Up a COA
Ready to check a lot?
Look up a Certificate of Analysis, or explore our research peptides.