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Why HK Analytical

What a peptide report should prove, what ours print, and how that compares with five labs buyers use. Check each line yourself.

Five problems, five answers.

What buyers run into with peptide reports, and what ours do instead.

  1. 01

    Common on peptide reports: A lookup that shows a file, with nothing to prove it was not changed.

    On our reports: Every report is a signed record. Open it on hkanalytical.com, compare the PDF’s fingerprint with the one we recorded, or check the signature with our published key.

    Verify a report
  2. 02

    Common on peptide reports: One certificate on several shops, or edited after release.

    On our reports: One report covers one sample from one client and says how that client is related to us. A correction is a new version that names the old one. Nothing is edited in place.

    Corrections
  3. 03

    Common on peptide reports: Identity from retention time alone.

    On our reports: Identity by mass. The report prints the expected and the observed mass, with the error in ppm. Similar peptides can leave the column together; their masses differ.

    Identity (LC-MS)
  4. 04

    Common on peptide reports: Raw data left out, or sold as an extra.

    On our reports: The full chromatogram, the peak table, the integration settings and the mass spectrum are in every report.

    Example report
  5. 05

    Common on peptide reports: A “sterility” result that is not a sterility test.

    On our reports: Ours is USP <71>: the tested units incubate for at least 14 days. A shorter microbial screen is not a sterility test, and we never call it one.

    Sterility (USP <71>, 14 days)

Check it yourself.

The real files behind every answer above: open them and check.

Our example report
A one-page PDF, 281 kB, rendered by the same software as every report and marked as an example: the vial, the result and one row per ordered test. A second, detailed PDF adds the raw data of each test.
Open the PDF Detailed PDF, raw data All example reports
Its SHA-256 fingerprint
f3a6 18d3 fccc 2ec4 4fe8 2ca2 d044 24c2 f691 cbc6 c18a 9269 b3b9 ef56 33da ac46 Your browser computes the same 64 characters from the file. Change one byte and they all change.
Check a PDF
Our signing keys
hk-2026-1 (AF63 3A1E 64C0 A518) signs client reports. hk-demo-1 signs the examples and can never show Valid.
Check a signature Public keys
The example, verified
Its ID, key and QR code are printed on it. Scan it or enter them on our verify page: it opens marked DEMO.
Try it

How we compare.

Five labs buyers use, row by row, on what you can check on a report or a lab’s site. Where another lab does what we do, or publishes a faster turnaround, the table says so.

  • Meets this row
  • Partly meets it
  • Does not meet it, on what we read
What you can check HK Analytical our example report Janoshik Freedom Diagnostics Vanguard Laboratory Krause Analytical MZ Biolabs
How identity is shown on the report HK Analytical · our example report Accurate mass by LC-MS: expected and observed mass, with the error in ppm Identity on our example Janoshik Does not meet it, on what we read: The peptide is named; no identity evidence on the report Freedom Diagnostics Partly meets it: Mass spectrum image; no expected mass or error Vanguard Laboratory Does not meet it, on what we read: Retention time against a reference standard (HPLC-UV) Krause Analytical Partly meets it: LC-MS spectrum; no expected mass or error MZ Biolabs Meets this row: Accurate mass: expected and measured mass
Raw data printed on the report HK Analytical · our example report Full chromatogram, peak table, integration settings and mass spectrum Example report Janoshik Does not meet it, on what we read: None on the standard report; raw data is an add-on Freedom Diagnostics Partly meets it: Chromatogram and spectrum images; no peak table Vanguard Laboratory Partly meets it: Chromatogram; no peak table Krause Analytical Partly meets it: Chromatogram and mass spectrum; no peak table MZ Biolabs Partly meets it: Chromatogram and peak table; no integration settings
How you check that a report is genuine HK Analytical · our example report Signed record, published public key, PDF fingerprint check and a private link Verify a report Janoshik Partly meets it: Task number and key on the lab’s site; QR code Freedom Diagnostics Partly meets it: Public lookup by company name or code; QR to the PDF Vanguard Laboratory Partly meets it: Search by report number on the lab’s hub (reports the client made public); no QR or code on the reports we read Krause Analytical Partly meets it: Upload form; the lab replies by email MZ Biolabs Partly meets it: QR on 2026 reports; no lookup page on the lab’s site
Client relationship stated on the report HK Analytical · our example report Yes, on page one, inside the signed record Disclosure policy Janoshik Does not meet it, on what we read: Not stated Freedom Diagnostics Does not meet it, on what we read: Not stated Vanguard Laboratory Does not meet it, on what we read: Not stated Krause Analytical Does not meet it, on what we read: Not stated MZ Biolabs Does not meet it, on what we read: Not stated
Measurement uncertainty and decision rule HK Analytical · our example report Expanded uncertainty (k = 2) with each measured value, or the reason none is stated, and the decision rule behind each verdict Uncertainty Janoshik Does not meet it, on what we read: Neither printed Freedom Diagnostics Does not meet it, on what we read: Neither printed Vanguard Laboratory Partly meets it: ± on purity on some reports; no decision rule Krause Analytical Does not meet it, on what we read: Neither printed on peptide reports MZ Biolabs Does not meet it, on what we read: Neither printed
What “sterility” means HK Analytical · our example report USP <71>: at least 14 days of incubation Our sterility test Janoshik Partly meets it: Microbial count (TAMC and TYMC), reported pass or fail Freedom Diagnostics Does not meet it, on what we read: PCR screen for microbial DNA Vanguard Laboratory Meets this row: USP <71>, 14 days, as an option Krause Analytical Meets this row: USP <71>, 14 days, as an add-on MZ Biolabs Partly meets it: USP <71> announced for early 2025; not confirmed since
Version number printed on the report HK Analytical · our example report Yes. A correction is a new version that names the old one and says why Corrections Janoshik Does not meet it, on what we read: Not printed Freedom Diagnostics Does not meet it, on what we read: Not printed Vanguard Laboratory Does not meet it, on what we read: Not printed Krause Analytical Does not meet it, on what we read: Not printed MZ Biolabs Does not meet it, on what we read: Not printed
Photo of the vial, taken by the lab HK Analytical · our example report Taken by us on receipt, required for every report, and shown on page one of the PDF; the online report shows it if the client allows. Our example shows an example image, marked as one Chain of custody Janoshik Partly meets it: On the verify page, not on the report Freedom Diagnostics Meets this row: Yes Vanguard Laboratory Meets this row: Yes, with the lab’s label Krause Analytical Meets this row: Yes, with the lab’s sticker MZ Biolabs Does not meet it, on what we read: Not on the reports we read
Published turnaround HK Analytical · our example report Results within days of receipt How long it takes Janoshik Average 7 business days Freedom Diagnostics Average 1–3 business days Vanguard Laboratory Confirmed per order Krause Analytical Not published MZ Biolabs Not published

Based on each lab’s public website and sample reports, checked September 2026. Our column describes our report format, as our example report shows it; every report is produced by the same software, which enforces it. If something changed, tell us: contact@hkanalytical.com

Sources: what we read for each lab, checked September 2026

Each line is the public page or report a cell comes from. A table of what is printed shows what a buyer can check; it does not show whether a lab’s numbers are right.

Janoshik janoshik.com

  1. How identity is shown on the report: The peptide is named; no identity evidence on the report. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “How identity is shown on the report” checked 2026-09-24
  2. Raw data printed on the report: None on the standard report; raw data is an add-on. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com; add-on list on the lab’s test page. janoshik.com, BPC-157 test page , source for “Raw data printed on the report” checked 2026-09-24
  3. How you check that a report is genuine: Task number and key on the lab’s site; QR code. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “How you check that a report is genuine” checked 2026-09-24
  4. Client relationship stated on the report: Not stated. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “Client relationship stated on the report” checked 2026-09-24
  5. Measurement uncertainty and decision rule: Neither printed. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “Measurement uncertainty and decision rule” checked 2026-09-24
  6. What “sterility” means: Microbial count (TAMC and TYMC), reported pass or fail. The lab’s test page and report #203591. janoshik.com, sterility test page , source for “What “sterility” means” checked 2026-09-23
  7. Version number printed on the report: Not printed. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “Version number printed on the report” checked 2026-09-24
  8. Photo of the vial, taken by the lab: On the verify page, not on the report. Lab-hosted reports #219577, #203591, #199953 (2026) on verify.janoshik.com. janoshik.com , source for “Photo of the vial, taken by the lab” checked 2026-09-24
  9. Published turnaround: Average 7 business days. The lab’s peptide test page. janoshik.com, BPC-157 test page , source for “Published turnaround” checked 2026-09-23

Freedom Diagnostics freedomdiagnosticstesting.com

  1. How identity is shown on the report: Mass spectrum image; no expected mass or error. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “How identity is shown on the report” checked 2026-09-24
  2. Raw data printed on the report: Chromatogram and spectrum images; no peak table. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “Raw data printed on the report” checked 2026-09-24
  3. How you check that a report is genuine: Public lookup by company name or code; QR to the PDF. The lab’s public lookup page. freedomdiagnosticstesting.com , source for “How you check that a report is genuine” checked 2026-09-24
  4. Client relationship stated on the report: Not stated. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “Client relationship stated on the report” checked 2026-09-24
  5. Measurement uncertainty and decision rule: Neither printed. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “Measurement uncertainty and decision rule” checked 2026-09-24
  6. What “sterility” means: PCR screen for microbial DNA. The lab’s home page and submission form. freedomdiagnosticstesting.com , source for “What “sterility” means” checked 2026-09-23
  7. Version number printed on the report: Not printed. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “Version number printed on the report” checked 2026-09-24
  8. Photo of the vial, taken by the lab: Yes. Reports Simp2609180018 (2026) and True2503240015 (2025), opened through the lab’s public lookup, and one 2025 report for a private client (not named here). freedomdiagnosticstesting.com , source for “Photo of the vial, taken by the lab” checked 2026-09-24
  9. Published turnaround: Average 1–3 business days. The lab’s home page (“Average results in 1-3 business days”); the clock starts when the sample is logged in. freedomdiagnosticstesting.com , source for “Published turnaround” checked 2026-10-03

Vanguard Laboratory vanguardlaboratory.com

  1. How identity is shown on the report: Retention time against a reference standard (HPLC-UV). Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “How identity is shown on the report” checked 2026-09-24
  2. Raw data printed on the report: Chromatogram; no peak table. Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “Raw data printed on the report” checked 2026-09-24
  3. How you check that a report is genuine: Search by report number on the lab’s hub (reports the client made public); no QR or code on the reports we read. The lab’s report hub; Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “How you check that a report is genuine” checked 2026-09-24
  4. Client relationship stated on the report: Not stated. Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “Client relationship stated on the report” checked 2026-09-24
  5. Measurement uncertainty and decision rule: ± on purity on some reports; no decision rule. Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “Measurement uncertainty and decision rule” checked 2026-09-24
  6. What “sterility” means: USP <71>, 14 days, as an option. The lab’s peptide testing page and report V260309-11. vanguardlaboratory.com , source for “What “sterility” means” checked 2026-09-23
  7. Version number printed on the report: Not printed. Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “Version number printed on the report” checked 2026-09-24
  8. Photo of the vial, taken by the lab: Yes, with the lab’s label. Reports V260309-11, V260819-6 and V260904-27 (2026). verifiedbyvanguard.com , source for “Photo of the vial, taken by the lab” checked 2026-09-24
  9. Published turnaround: Confirmed per order. The lab’s peptide testing page. vanguardlaboratory.com , source for “Published turnaround” checked 2026-09-23

Krause Analytical krauselabs.com

  1. How identity is shown on the report: LC-MS spectrum; no expected mass or error. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “How identity is shown on the report” checked 2026-09-24
  2. Raw data printed on the report: Chromatogram and mass spectrum; no peak table. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “Raw data printed on the report” checked 2026-09-24
  3. How you check that a report is genuine: Upload form; the lab replies by email. The lab’s verification page. krauselabs.com , source for “How you check that a report is genuine” checked 2026-09-23
  4. Client relationship stated on the report: Not stated. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “Client relationship stated on the report” checked 2026-09-24
  5. Measurement uncertainty and decision rule: Neither printed on peptide reports. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “Measurement uncertainty and decision rule” checked 2026-09-24
  6. What “sterility” means: USP <71>, 14 days, as an add-on. The lab’s peptides page. krauselabs.com , source for “What “sterility” means” checked 2026-09-23
  7. Version number printed on the report: Not printed. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “Version number printed on the report” checked 2026-09-24
  8. Photo of the vial, taken by the lab: Yes, with the lab’s sticker. Lab numbers #204152 and #204219 (2026) and #129079 (2025): copies published by Finnrick, which orders these tests (sign-in needed there), as posted by sellers. krauselabs.com , source for “Photo of the vial, taken by the lab” checked 2026-09-24
  9. Published turnaround: Not published. No figure on the lab’s site. krauselabs.com , source for “Published turnaround” checked 2026-09-23

MZ Biolabs mzbiolabs.com

  1. How identity is shown on the report: Accurate mass: expected and measured mass. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “How identity is shown on the report” checked 2026-09-24
  2. Raw data printed on the report: Chromatogram and peak table; no integration settings. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “Raw data printed on the report” checked 2026-09-24
  3. How you check that a report is genuine: QR on 2026 reports; no lookup page on the lab’s site. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “How you check that a report is genuine” checked 2026-09-24
  4. Client relationship stated on the report: Not stated. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “Client relationship stated on the report” checked 2026-09-24
  5. Measurement uncertainty and decision rule: Neither printed. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “Measurement uncertainty and decision rule” checked 2026-09-24
  6. What “sterility” means: USP <71> announced for early 2025; not confirmed since. The lab’s page for new services. mzbiolabs.com , source for “What “sterility” means” checked 2026-09-23
  7. Version number printed on the report: Not printed. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “Version number printed on the report” checked 2026-09-24
  8. Photo of the vial, taken by the lab: Not on the reports we read. Reports without a report number: BPC-157 (April 2024) and tirzepatide (June 2023), as published by the sellers that ordered them, and the 2026 report viewer. mzbiolabs.com , source for “Photo of the vial, taken by the lab” checked 2026-09-24
  9. Published turnaround: Not published. No figure on the lab’s site. mzbiolabs.com , source for “Published turnaround” checked 2026-09-23

What this table does not show.

  1. 01

    Whether a lab’s numbers are right.

    A table of what is printed cannot show that. The raw data on a report can, and so can one batch tested at two labs.

  2. 02

    Every report a lab has issued.

    We read a few public reports and pages per lab. Formats change; the sources list says what we read and when.

  3. 03

    Our own client reports.

    The other labs’ cells come from their real reports. Our column describes our report format, as our example report shows it; every report is produced by the same software, which enforces it.

  4. 04

    A measured turnaround for us.

    We say “within days of receipt” and give no day count until we can state one from our own reports.

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Send a vial.Get the evidence.

  1. 01

    Request a quote.

    List each product and the tests you want. We reply by email with the quote, the vials to send and the address.

  2. 02

    Ship the vials.

    Unopened, numbered, with the custody form inside.

  3. 03

    Get the report.

    A signed PDF and a private link. You decide who sees it.

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A question first? contact@hkanalytical.com