Kovera Labs reports are the easiest of the major laboratories to verify by hand: one identifier, one box, one result. The pitfalls are small ones. The verifier is a single-page app with an unusual address, the certificate prints a second code that the form does not want, and one batch can carry several separate reports. This guide covers each. For the laboratory’s background and how we rate it, see the Kovera Labs review. To run a certificate through our checker, use the Kovera COA checker.
How to verify
Verification page: koveralabs.com/#/verify
- Report number. KVR, the year and six characters, with a suffix on some. It is what the verifier’s COA ID box takes: KVR-2026-EE59DB-S98. Enter it exactly as printed.
- Client and certified date. Who Kovera tested for and when the certificate was certified.
- Product and batch. The compound and the batch code. Compare the batch with the lot on your vial.
- Labeled quantity. The label strength. The net content reference range is set around it.
- Headline purity and net content. The batch averages with the reference standard beside each. Kovera’s copy should show the same figures.
- Identity, endotoxin and sterility. The panels the certificate promises. A missing panel may be filed as a separate report.
- Heavy metals. Arsenic, cadmium, lead and mercury should all be named.
- Batch conformity. Each tested vial. The batch average is the mean of these rows.
- Report number and access code. The footer repeats the report number. The access code beside it (GMA290G) is not what the verifier asks for.
- Copy the report number (box 1).It is top right, under CERTIFICATE OF ANALYSIS, and repeats in the footer (box 9). Include the KVR- prefix and any suffix. Do not type the access code.
- Open the verifier.Go to koveralabs.com/#/verify. The page says “Verify a COA” and asks you to enter a COA ID to confirm the report exists and view the reported results.
- Enter the number and click Verify.Or skip the form: #/verify?code=KVR-2026-EE59DB-S98 opens the same certificate. The page loads it in your browser, so give it a moment.
- Download the PDF and compare.The result is headed “Certificate of Analysis” with a Download PDF button. Compare client (box 2), batch (3), the headline results (5), the panels (6 and 7) and the vial table (8) with your copy.
Read the certificate before you look it up
The identifiers sit at the top and bottom of the page. Only one is the lookup input.
- Report # (boxes 1 and 9)Top right, under CERTIFICATE OF ANALYSIS, and again in the footer: KVR-2026-XXXXXX, a prefix, the year and six characters. Some carry a suffix, as in KVR-2026-EE59DB-S98. Enter it exactly as printed.
- Access Code (box 9)Footer, beside the report number. This example’s is GMA290G. The verifier’s box is labeled COA ID and takes the report number; the access code is not what it asks for.
- Client and Certified (box 2)The header names the client (Renova Peptides) and the certified date (May 7, 2026).
- QR code and addressThe footer prints a QR code and koveralabs.com/verify. The verifier itself lives at koveralabs.com/#/verify.
A worked example: Renova Peptides’s NAD+ 500mg
Renova Peptides publishes a Kovera certificate for its NAD+ 500mg, batch NAD5000526, report KVR-2026-EE59DB-S98, certified May 7, 2026. Kovera prints the specification next to each result, which makes the page easy to read against itself:
| Test | Reference standard | Result | What to check |
|---|---|---|---|
| Batch avg purity (box 5) | > 98% | 99.885% | Matches the headline figure on the vendor’s page. |
| Batch avg net content (box 5) | 500mg ± 10% | 534.78 mg | Within the stated range, and the same mg you were quoted. |
| Identity (LC-MS) (box 6) | NAD+ | NAD+ | Names the compound you bought. |
| Endotoxin safety screen (box 6) | ≤ 0.5 EU/mL | PASS | Present on the certificate, or filed as a separate report. |
| Microbial sterility screen (box 6) | No growth | No Growth | Present on the certificate, or filed separately. |
| Heavy metals (box 7) | As, Cd, Pb, Hg | Negative for each | All four analytes named. |
The verifier’s certificate agrees with the vendor’s file: batch NAD5000526, purity 99.885%, net content 534.78 mg. Our data records 6 test categories for it. The certificate also prints a photograph of the vial, which should show the vendor’s label and the same strength.
Why there are two vials
The Batch Conformity table prints each vial Kovera tested. Here that is two: 99.877% purity at 534.74 mg and 99.892% purity at 534.82 mg. The batch averages in the main table, 99.885% and 534.78 mg, are the means of those two (printed as 99.885% and 534.78 mg). A single headline number hides how far the vials differ, so when a seller quotes only the average, the table is where the spread is.
One batch, several reports
Kovera files separate reports for a batch’s endotoxin, heavy metals, sterility and mass spectrometry work, and its verification service returns every report published under the code you enter. In our library a batch’s primary certificate is sometimes accompanied by separate endotoxin or heavy-metals reports. Two practical points follow. A vendor who shows only the primary report may not be hiding anything; the other panels can simply be filed separately. And the lot on every file in the set should be the same. If the lot on the endotoxin report differs from the lot on the purity report, the set does not describe one batch.
Red flags on a Kovera report
- A number that is not KVR-year-six characters. A different prefix or a short number does not fit the format Kovera prints.
- The year in the number disagrees with the Certified date. In the example both are 2026. A mismatch is worth a question.
- A verifier that opens a different batch or compound. The number resolves, but the record describes something else.
- A batch average that is not the mean of the printed vials. The batch conformity table should add up.
- Net content outside the stated range. The reference column says what it should fall in; the result must sit within it.
- A verify link on another domain. The verifier is on koveralabs.com.
- The access code offered as the report number. The form takes the KVR number.
Kovera reports in PeptidePrices data
The COA library holds 1,293 Kovera certificates from 53 vendors. 1,246 (96%) have been matched to Kovera’s own record.
On the price index, 731 listings show a Kovera report, and 730 across 48 vendors carry one matched to Kovera’s record. 427 of those document five or more test categories. The vendors with the most matched Kovera listings are:
- BioEdge Research Labs65 matched listings
- Real Peptides46 matched listings
- LabFirst Peptides44 matched listings
- Pure Peptides39 matched listings
- Vector Amino Labs38 matched listings
- Vanta Labs Research35 matched listings
What a verified Kovera report does and does not prove
What it proves. Kovera published the report in its record, and the copy you hold is the same document.
What it does not. Kovera tests the samples it is sent. The batch on the report has to match the batch on your vial, and the client has to be the seller you bought from. For a laboratory-neutral checklist, see how to verify a peptide COA.
Kovera Labs verification questions
How do I verify a Kovera Labs COA?
Copy the Report # from the top right of the certificate (it starts KVR-), open koveralabs.com/#/verify, enter it in the COA ID box and click Verify. The page opens the certificate with a Download PDF button. Compare the client, product, batch, purity, net content and certified date with your copy.
Where is the Kovera report number?
Directly under CERTIFICATE OF ANALYSIS in the header, as Report # KVR-2026-XXXXXX, and again in the footer beside the QR code. Some reports carry an extra suffix after the six characters, as in KVR-2026-EE59DB-S98. Enter it exactly as printed.
What is the access code in the Kovera footer?
A separate code, usually seven characters, printed beside the report number. Kovera's verifier asks for the report number in its COA ID box, and the access code is not what it takes. Keep the access code with the report for any query you send Kovera.
Why does the Kovera verify address have a # in it?
Kovera's verifier is a single-page app, and the part after the # is its route. A link like koveralabs.com/#/verify?code=KVR-2026-EE59DB-S98 opens the certificate directly; the page then loads the record in your browser. A link preview or a text-only reader may show little more than the page title.
Can one Kovera batch have several reports?
Yes. Kovera files separate reports for a batch's endotoxin, heavy metals, sterility and mass spectrometry work, and the verifier returns every report published under the code. When a vendor shows only one of them, the others may be filed separately. Compare the lot across all of the files you are given.
What does the batch conformity table show?
Purity and net content for each vial Kovera tested from the batch, with a batch average. In the example we walk through there are two vials, 99.877% and 99.892% purity, and the batch average of 99.885% is their mean. A single headline number hides that spread.
What does the PeptidePrices checker do with a Kovera report?
It reads the report number from your certificate, asks Kovera's public verification service for it, and compares the record's report number, batch and compound with your copy. A match is verified, a different batch or compound is a mismatch, and a number Kovera does not return is shown as unresolved, not as a fake.
Which peptide vendors publish the most Kovera reports?
On the PeptidePrices price index, 730 listings from 48 vendors carry a Kovera report that matched Kovera's own record. The vendors with the most are BioEdge Research Labs (65), Real Peptides (46), LabFirst Peptides (44), Pure Peptides (39), Vector Amino Labs (38) and Vanta Labs Research (35).
Does a verified Kovera report prove my vial was tested?
No. It proves Kovera published that report and the copy you hold is the same. The batch printed on the certificate has to match the batch on your vial, and the client has to be the seller you bought from.