Check report · Shop link

Peptide Crafters

A permanent record of what we could see on 2026-09-17. Share it, cite it, or download it.

Shop link · https://peptidecrafters.com
Good · 6.1/10Grade CLayer 3 · Research-use-only supplier

Peptide Crafters supply check

Peptide Crafters sells research peptides strictly designated for in-vitro laboratory use. The site includes storage specifications and offers free expedited shipping above a minimum order value, but lacks specific third-party laboratory testing certificates or direct contact details.

Confidence: high · 4 pages read · 0 documents opened · 2026-09-17 08:57 UTC

We could read most of what matters, lab evidence included.

Good. Right on the median of the 125 research suppliers we have scored (6.0).

How to read this score
05.06.58.010
  • Strong8.0 – 10
  • Good6.5 – 7.9
  • Mixed5.0 – 6.4
  • Weak0 – 4.9
Against the research-supplier pool: median 6.0, lower quarter below 4.3, top quarter above 8.1, from 125 scored checks. This one is 6.1 Right on the median of the 125 research suppliers we have scored (6.0). The dashed line marks the median.
What to look at before you buy
  1. 1No third-party lab reports or specific lab names are provided on the site.
  2. 2No direct email address or phone number is provided on the contact page.
How the score is built

Third-party test reports: are they recent, lot-linked, and do they use methods that can actually prove identity and amount?

  • Published test reportsFlagged

    We found no certificate or test-report links anywhere we could read on the site. For a research-use seller this is the single most important thing to publish.

  • Reports tied to a lotNot visible

    No documents to trace back to a batch.

  • What the reports sayFlagged

    Site references providing third-party testing data where available, but no named lab reports are attached.

  • Analytical methodNot visible

    No lab testing methods or details documented.

  • Named third-party labNot visible

    No outside laboratory is named. In-house numbers are not independent evidence.

  • Document recencyNot visible

    The documents carry no date we could read from the server.

Social proof evidence
Weak signal · 12% of the score

Third-party ratings and public threads, read directly at the moment of this check. They are easy to buy and easy to brigade, so they are weighted low and can never overturn a lab-evidence flag. Every source below is also logged in the evidence trail.

Audit log — what we consulted

Every claim in this report traces to one of the items above. Expand a row to see the material it is based on.

Confidence breakdown

The score is a weighted mean over the pillars we could actually read — 88% of the model on this run. Anything we could not see is left out of the maths rather than counted against the seller.

Lab evidence0.00 of 6.1 points · 39% of this score

Model weight 34% · pillar score 0.0/10 · 0 ok, 2 flagged, 4 unseen

Company reality2.73 of 6.1 points · 27% of this score

Model weight 24% · pillar score 10.0/10 · 7 ok, 0 flagged, 0 unseen

Handling standards2.05 of 6.1 points · 20% of this score

Model weight 18% · pillar score 10.0/10 · 1 ok, 0 flagged, 2 unseen

Shipping and storage1.36 of 6.1 points · 14% of this score

Model weight 12% · pillar score 10.0/10 · 2 ok, 0 flagged, 1 unseen

Third-party reputationnot visible · excluded

Model weight 12% · nothing readable · 0 ok, 0 flagged, 3 unseen

Inside the reputation pillar (12% of the model)

Reputation is deliberately the lightest pillar. Even a perfect rating cannot lift a report over a lab-evidence flag.

Cite this check

Paste the citation straight into a paper or a reference manager. Both files carry the run identifier and the timestamp of this report.

MyDosage. MyDosage supply check: Peptide Crafters (6.1/10). 2026-09-17. https://mydosage.com/c/dc35c3c7-3d7b-47e1-a426-63caf209f42d
Take the whole file with you

The pack is one PDF: the verdict page plus an appendix of every cited page, document and social-proof source with the text we read. The data exports carry the same thing in machine form — inputs, every source with its timestamp and confidence weight, and the full scoring breakdown.

Citable PDF
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