How to verify an Accumark Labs COA
Check a certificate with the laboratory that issued it, not with the seller. These are the steps we use ourselves (check L3 in How we rate). Research use only.
- Certificates confirmed
- 80
Certificates confirmed
- Vendors confirmed
- 5
Vendors confirmed
Four steps
Find the code on the certificate
Each certificate prints an AccuVerify code.
Open the laboratory's own lookup
Enter the code in AccuVerify on accumarklabs.com. Type the address yourself rather than following a link from the seller, and make sure the page is on the laboratory's own domain.
Compare the result with the vendor's copy
A real code returns 'Authenticity Confirmed' with the report. The product, lot, client name, test date, purity and quantity should all match; any difference in these is a material difference.
Run the control check
An invented code returns 'Invalid verification code'. Change one character of a real code and look it up again: a lookup that answers every code proves nothing.
accumarklabs.com/verify → (opens in new tab)
Our check (L3, pass): On 2026-10-22 AccuVerify returned 'Authenticity Confirmed' for real codes ULBM-3S9Z and EJS6-BXRG and 'Invalid verification code' for an invented one.
What a confirmation is worth in our scores
On an Accumark Labs certificate, a printed key earns +1.5 and a key we confirm at the laboratory earns another +1.5 under our lab rule. Only confirmed certificates count toward the testing gate (rule A9). We have confirmed 80 of 81 certificates naming Accumark Labs, from 5 vendors; the vendors are listed on the Accumark Labs profile. For what every field on a certificate means, read how to read a peptide COA.
Verifying Accumark Labs: Frequently Asked Questions
Can I verify an Accumark Labs COA online?
Yes. Each certificate prints an AccuVerify code. Enter the code in AccuVerify on accumarklabs.com. A real code returns 'Authenticity Confirmed' with the report.
What should an invented Accumark Labs code return?
An invented code returns 'Invalid verification code'. We ran this control when we checked the lookup on 2026-10-22.
How many Accumark Labs certificates has Peptide Source Review confirmed?
80 of the 81 certificates naming Accumark Labs on listed vendors' pages were confirmed against the laboratory's own record, from 5 vendors.
What tier is Accumark Labs?
Accumark Labs is tier B+ in our lab directory, graded on six published checks. Check L3 is whether its reports can be confirmed with the laboratory.