Precisely Peptides
A permanent record of what we could see on 2026-09-16. Share it, cite it, or download it.
Precisely Peptides provides lot-tested research peptides with published COAs and explicit research-use disclaimers.
Precisely Peptides is a US-based supplier selling research-use-only peptides. The site details lot-specific COAs, ISO 17025 accredited laboratory testing, clear return policies, and explicit disclaimers regarding human consumption.
Confidence: high · 7 pages read · 0 documents opened · 2026-09-16 19:07 UTC
We could read most of what matters, lab evidence included.
Good. Above the median of the 124 research suppliers we have scored (6.0).
- Strong8.0 – 10
- Good6.5 – 7.9
- Mixed5.0 – 6.4
- Weak0 – 4.9
- 1We found 1 document link, but none of the ones we tried opened.
- 2The reports we saw are not tied to a lot or batch, so they cannot tell you about the specific vial you would receive.
- 3Nothing published about storage temperature or cold shipping. Peptides degrade with heat, and the transit leg is where most of it happens.
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 1 document link, but none of the ones we tried opened.
- Reports tied to a lotFlagged
The reports we saw are not tied to a lot or batch, so they cannot tell you about the specific vial you would receive.
- What the reports sayClear
Mentions testing by an ISO/IEC 17025-accredited US laboratory, but specific third-party lab names are not detailed in the text.
- Analytical methodClear
States testing includes HPLC and MS verification for identity, purity, and net peptide content, plus heavy metals, sterility, and endotoxin testing on select lines.
- 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.
- Open the COA library
Did not open. No lot or batch reference.
We could not open this document from the public link. Nothing in the link or its label ties this report to a specific lot or batch.
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 2026-09-16 19:06 UTC
No Google rating we could read from here. Google blocks automated reads, so open the link and judge it yourself.
Read 2026-09-16 19:06 UTC
No public community discussion we could read. Silence is not a verdict either way.
Read 2026-09-16 19:06 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 — 88% 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 · 2 ok, 2 flagged, 2 unseen
Model weight 24% · pillar score 10.0/10 · 5 ok, 0 flagged, 2 unseen
Model weight 18% · pillar score 10.0/10 · 3 ok, 0 flagged, 0 unseen
Model weight 12% · pillar score 6.7/10 · 2 ok, 1 flagged, 0 unseen
Model weight 12% · nothing readable · 0 ok, 0 flagged, 3 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: Precisely Peptides (7.6/10). 2026-09-16. https://mydosage.com/c/3ff21312-33a3-4cfd-94aa-1b1002f97000
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.