Shared Peptide Lots: Seven SHA-Verified Chromatogram Matches
A corrected, document-bound review of seven cross-brand certificate groups whose exact source PDFs contain the same full-SHA chromatogram stream.
Correction — September 12, 2026
The original version of this article reported 23 shared lots. That number came from an automated candidate scan that matched compact embedded-image fingerprint prefixes, compound identity, document count, and purity. We described every surviving image as a chromatogram. That classification step was not justified.
A certificate can reuse a logo, border, QR code, vial photograph, or other non-instrument image. A 16-character SHA-256 prefix is useful for finding candidates, but it is not the full digest and does not by itself establish byte identity. Compound and purity agreement cannot turn an unclassified image into an instrument trace.
We re-reviewed the source material under a stricter contract. Seven cross-brand groups survived: 14 exact source PDFs, each verified against its archive SHA-256, with the same full-SHA chromatogram stream present in both documents and the artifact classification recorded in the editorial review ledger. Six groups remain in the current vendor-profile disclosure; the seventh is retained historical evidence. We withdraw every original row not listed below.
That correction changes the headline and the scope of the finding. It does not change the caveat that matters most: a shared analysis does not establish shared ownership, wrongdoing, or which party supplied another.
At a glance
| Reviewed evidence | Count |
|---|---|
| Exact source PDFs re-hashed | 14 |
| Full-SHA chromatogram groups | 7 |
| Groups in current profile disclosures | 6 |
| Brands represented | 6 |
| Issuing laboratories | 2 |
The reviewed groups connect three brand pairs: Apex Peptides with Simple Peptide, Bench Grade Peptides with Nation Peptides, and Northline Labs with Value Research Labs.
The seven reviewed groups
| Certificate substance | Brands | Laboratory | Matching report detail | Sources |
|---|---|---|---|---|
| GHK-CU/KPV 60mg | Apex Peptides, Simple Peptide | Freedom Diagnostics | 99.84% purity; lot GHK60-042026-1 |
Apex · Simple |
| CJC-1295 without DAC | Apex Peptides, Simple Peptide | Freedom Diagnostics | 99.43% purity | Apex · Simple |
| Melanotan II 10mg | Apex Peptides, Simple Peptide | Freedom Diagnostics | 99.81% purity; lot MT210-052026-7; 10.23mg net content |
Apex · Simple |
| Sermorelin 10mg | Apex Peptides, Simple Peptide | Freedom Diagnostics | 99.15% purity; lot SERM10-042026-1; 10.97mg net content |
Apex · Simple |
| GLP-2 / Tirzepatide | Bench Grade Peptides, Nation Peptides | Freedom Diagnostics | 99.81% purity; report 2607010298; lot NLGLP230501; 32.72mg net content |
Bench Grade · Nation |
| Melanotan I | Northline Labs, Value Research Labs | ILS Laboratories | 99.81% purity; lot core 7747354; 10.51mg net content |
Northline · Value Research |
| IGF-1 LR3 | Northline Labs, Value Research Labs | ILS Laboratories | 98.31% purity; lot core 5439587; 1.04mg net content; retained historical group |
Northline · Value Research |
Four reviewed groups connect Apex and Simple, one connects Bench Grade and Nation, and two connect Northline and Value Research. Five of the seven pairs also state the same net-content result in both source documents.
The GHK-CU/KPV row is deliberately named from the certificate, not the storefront relationship. One storefront record points at a GHK-Cu product, but the reviewed document itself states the tested material as the GHK-CU/KPV blend. The certificate controls the evidence label.
What the evidence supports
A chromatogram is instrument output from an analysis. When two exact certificate files contain the same embedded chromatogram bytes and report the same substance and purity, the evidence supports one analysis being reported in both brand contexts. Matching lot codes or lot-number cores strengthen that interpretation in several of the reviewed groups.
That is consistent with a shared upstream lot or a manufacturer arranging brand-specific reports for material from one lot. It does not tell us:
- who manufactured the material;
- whether either storefront bought from the other;
- whether both bought from an unnamed third party;
- whether the businesses share owners or management; or
- how either vendor stored, handled, or shipped the material after testing.
Five reviewed pairs report the same measured net content as well as the same chromatogram. That makes the shared report extend beyond a purity percentage, but it still does not establish the commercial path between the brands.
The method now used
The standing check has two deliberately separate stages.
First, the archive builds a compact candidate index. Embedded images receive 16-character SHA-256 prefixes so more than ten thousand documents can be compared without turning the public data asset into a full image-hash database. A prefix match is only a lead. The candidate must also involve more than one vendor, a bounded number of exact documents, one normalized substance identity, and a complete agreeing purity value for every source document.
Second, a human reviews any candidate before it can become a shared-instrument-trace claim. For each reviewed group we:
- fetch every exact source document;
- verify the document bytes against the archive’s full SHA-256;
- extract and hash every embedded image with the full SHA-256;
- visually classify the selected artifact as a chromatogram;
- bind that full image hash and the complete source-document SHA set in the manual review ledger; and
- require a completed
reviewedorconfirmedstate before the finding reaches vendor disclosures.
Reviewed documents are fetched and re-hashed again whenever the trace index is rebuilt. An old generated fingerprint cannot attest itself. The public anomaly feed carries only the compact prefix; the full internal digest remains in the review and trace contracts used by the verifier.
Candidates that have not completed this path remain neutral image-review leads. Their copy says only that the documents have a matching fingerprint prefix and may share an image. They do not count as shared lots and do not appear in vendor-profile disclosures.
Why absence is not a clean bill of health
Vendors with no reviewed finding receive no shared-lot entry. We do not render a zero, “none,” or “independently sourced.” The archive is partial, image extraction varies by document format, and most candidates have not received full artifact review. Not finding a shared chromatogram is not evidence that a vendor has an independent supply chain.
For the same reason, the profile denominator is described as certificates with indexed embedded images—not “trace-comparable certificates.” An indexed image may be document furniture. Only a full-hash, human-classified chromatogram supports the numerator.
Related — Ethos sample IDs, not chromatograms
A later document review found eleven vendor-hosted Ethos Analytics certificates in which Glow Aminos GL-/Gl-0100xx files match Flawless Compounds FL-0100xx files on Ethos sample ID, dates, and assay, including NAD+ spray 26EA0216-021. Those PDFs are brand-prefixed reprints of one analysis, not byte-identical files, and they are not part of the seven chromatogram groups above. Nova Peptides’ current NAD spray PDFs use different Ethos sample IDs. Full tables: NAD+ spray COA: Glow Aminos and Flawless Compounds share one Ethos analysis.
Disclosure
Apex Peptides, Northline Labs, and Value Research Labs have disclosed affiliate or referral relationships with PeptideBenchmark. The other three brands named in the reviewed chromatogram set do not have a confirmed PeptideBenchmark affiliate relationship in our current register. Glow Aminos, Flawless Compounds, and Nova Peptides, named in the related Ethos note, also have no confirmed PeptideBenchmark affiliate relationship.
Commercial relationships were not inputs to candidate matching or artifact review. We disclose them because three of the brands in this corrected analysis are businesses we may be paid to refer, and readers should be able to weigh that context themselves.
Common questions
Does a shared chromatogram mean two brands are the same company?
No. It shows that the same analysis image was reported in certificates associated with both brands. That is consistent with a shared upstream lot, but it does not establish common ownership, management, or the direction of supply.
Is white-labelling evidence that a vendor is dishonest?
No. Contract manufacturing and private labelling are ordinary commercial arrangements. These findings disclose an evidence relationship; they do not allege fraud, counterfeiting, or misrepresentation.
How do you verify that a shared image is a chromatogram?
We re-fetch each exact source PDF, verify its whole-document SHA-256 against the archive, hash every embedded image at full SHA-256 length, inspect the matching image, and bind the reviewed chromatogram hash to the complete source-document set in the review ledger.
Why are there fewer findings than this article originally reported?
The original scan treated a compact image-fingerprint match plus compound and purity agreement as sufficient to classify an image as an instrument trace. That was not sufficient: certificates also share logos, vial images, QR codes, and layout graphics. Only the seven full-hash, visually reviewed chromatogram groups below remain asserted.
Which laboratories issued the reviewed certificates?
Five reviewed groups use Freedom Diagnostics certificates and two use ILS Laboratories certificates. The laboratories are not the subject of the finding.