Growth Guys COA library: find your batch report
Checked October 28, 2026 against the Growth Guys FAQ and one report I matched myself.
30-second answer: per the vendor's FAQ, the certificate of analysis (COA) for each batch is on the product page and in its COA Library. Find the report, match its batch number to the one on your package, then confirm it on the testing lab's own page.
A lab report covers one batch, not a whole product line, so the batch number is the part that matters.
What the vendor says about testing
- Every batch of its peptides, HGH, tablets and other compounds is tested by Janoshik Analytical, an independent third-party laboratory.
- The exceptions it names are pharmaceutical products and reconstitution supplies.
- The COA for each batch is on the product page and in the COA Library.
Find and check your report
| Step | What to do |
|---|---|
| 1 | Open the product you bought and look for its COA, or search the COA Library |
| 2 | Find the batch number on your vial or package |
| 3 | Match it to the batch number on the report |
| 4 | Open the report on the lab's own page and confirm it matches |
| 5 | Check the compound name, the stated quantity and the test date |
What I checked
I matched the HGH kit report for batch GGC38 against the vendor's library entry, and the report on the lab's own site agreed. That is one report, so run the same check on your own batch.
The full walkthrough is in the COA guide. Why labs can differ is covered in why peptide lab reports disagree.
Ready to order?
Enter the code at checkout. If you copied it, just paste it in the Promo code box in the order summary, then press Apply. It does not apply by itself. Confirm the discount line before you pay.
Common questions
Where are Growth Guys lab reports?
Per the vendor's FAQ, the COA for each batch is on the product page and in its COA Library.
Who tests the products?
The vendor says each batch is tested by Janoshik Analytical, an independent third-party lab, with exceptions for pharmaceutical products and reconstitution supplies.
How do I know the report matches my vial?
Match the batch number on the report to the batch number on your package, then confirm the report on the lab's own page.
Is there a Growth Guys discount code?
Yes, MOVRA10 takes 10% off sitewide. Confirm the discount line at your cart.