Every Batch, Verified & Documented
We back every compound with a third-party Certificate of Analysis so you know exactly what you're working with, purity, identity, and test results in black and white.
What Is a Certificate of Analysis?
A Certificate of Analysis (COA) is an official document from an independent laboratory that confirms a specific batch of product meets its stated quality and purity specifications.
For research compounds, the COA is your proof of what's actually in the vial, the identity of the compound, its measured purity, and the analytical methods used to verify it. No guessing, no taking anyone's word for it.
At Certified Pep Lab, a COA is generated for every batch before it ever reaches you, and it's tied to the batch number printed on your product.
Certificates by Product
Browse the Certificate of Analysis for each compound. Use the search box to jump straight to a product.
What's On Every Certificate
Each COA gives you the full picture of a batch's quality at a glance.
Identity Confirmation
Verification that the compound is exactly what it claims to be, confirmed by analytical testing.
Purity by HPLC
The measured purity percentage from High-Performance Liquid Chromatography testing.
Test Methods
The specific analytical techniques used, so you can trace how every result was obtained.
Batch & Lot Number
A unique identifier linking the certificate directly to the product batch in your hands.
Pass / Fail Status
A clear verdict on whether the batch meets our quality specifications, no interpretation needed.
Lab Authorization
Issued and signed off by the independent testing facility that performed the analysis.
How We Verify Every Batch
Nothing ships until it's tested. Here's the path from batch to certificate.
Sample Pulled
A representative sample is taken from each production batch before release.
Independent Testing
The sample is sent to a third-party lab for HPLC purity and identity analysis.
Certificate Issued
Results are documented on a COA tied to the batch's unique lot number.
Available to You
Find the COA for your batch in the library above, matched to its lot number.
Quality You Can Verify
Frequently Asked Questions
Find your product in the COA Library above and open its certificate. Match the batch or lot number on your product label to the one on the certificate.
The batch or lot number is printed on the product label. Use it to confirm the certificate matches the exact batch you received.
Yes. Our purity and identity testing is carried out by third-party laboratories, so the results are objective and independent of us.
HPLC (High-Performance Liquid Chromatography) is an analytical method that separates and measures the components in a sample. The purity figure tells you what percentage of the sample is the target compound.
No. All products are supplied strictly for laboratory research use only and are not intended for human or animal consumption.