Peptidist
A permanent record of what we could see on 2026-09-17. Share it, cite it, or download it.
US-based seller of research peptides providing batch purity notes and standard storefront documentation.
Peptidist is a US-based vendor offering research peptides. The site displays HPLC purity claims and batch-specific testing disclosures, requiring buyers to be 21 or older for research chemical acquisition.
Confidence: high · 6 pages read · 0 documents opened · 2026-09-17 08:58 UTC
We could read most of what matters, lab evidence included.
Strong. Top quarter of the 125 research suppliers we have scored (median 6.0).
- Strong8.0 – 10
- Good6.5 – 7.9
- Mixed5.0 – 6.4
- Weak0 – 4.9
- 1Check third-party lab reports directly, as no specific lab partner name is provided in the available text.
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 sayNot visible
States third-party lab testing is performed per batch, but specific independent laboratory names are omitted in the page text.
- Analytical methodClear
Claims identity and purity testing using RP-HPLC at 214 nm.
- 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.
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.
Trustpilot did not answer, so we treat their reputation there as not visible.
Read 2026-09-17 08:58 UTC
Google shows 4.0/5.
Read 2026-09-17 08:58 UTC
No public community discussion we could read. Silence is not a verdict either way.
Read 2026-09-17 08:58 UTC
Every claim in this report traces to one of the items above. Expand a row to see the material it is based on.
The score is a weighted mean over the pillars we could actually read — 100% of the model on this run. Anything we could not see is left out of the maths rather than counted against the seller.
Model weight 34% · pillar score 5.0/10 · 1 ok, 1 flagged, 4 unseen
Model weight 24% · pillar score 10.0/10 · 7 ok, 0 flagged, 0 unseen
Model weight 18% · pillar score 10.0/10 · 1 ok, 0 flagged, 2 unseen
Model weight 12% · pillar score 10.0/10 · 3 ok, 0 flagged, 0 unseen
Model weight 12% · pillar score 10.0/10 · 1 ok, 0 flagged, 2 unseen
Reputation is deliberately the lightest pillar. Even a perfect rating cannot lift a report over a lab-evidence flag.
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: Peptidist (8.3/10). 2026-09-17. https://mydosage.com/c/55bcc7b1-6e4c-4305-861c-0278673a30e8
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.
Whatever this report said, there are three ways to get what you need.
- 1Doctor + approved medicineA prescription and a pharmacy-dispensed product with a regulator's label.
- 2Clinic + licensed compounding pharmacyA prescriber and a pharmacy we checked against its licence register.
- 3Research-use-only supplierNo medical oversight. Only worth it when nothing approved exists yet.
Prices, oversight and typical wait are compared side by side for United States.