Peptide Partners
Ordered peptides from Peptide Partners? Mail in a sample (US only) and let us test it.
Test my supplyPeptide Partners' purity-focus record is strongest in Retatrutide and Ipamorelin, while TB-500 and CJC-1295 show the clearest recurring purity and fill concerns. Recent testing is broad but dispersed: late rebounds coexist with batch-to-batch volatility in Tesamorelin and BPC-157, so the evidence is current yet uneven.
Corporate records, FDA correspondence, and identity bridges map Peptide Partners through Pirsek and a named controller while leaving UBO and facility questions open. The dossier also tracks a suspended lookalike domain, referral-code ecosystem, and payment-rail friction.
Batch identification policy
All vial labels have a Batch Id that can be reconciled against the various COAs for Purity/Assay, Endotoxin, Heavy Metals, or Sterility testing at
Sample authentication guidance
Our 3mL vials have a 1.25" x 0.75" white, BOPP label. At the top of the label is the full logo with the 'P Vial' symbol on the left, followed Peptide Partners, and underneath it says "CONNECTING THE GLOBAL RESEARCH COMMUNITY." Underneath the logo is a line identifying the molecule and weight. Underneath that is the word 'Batch' followed by an identification code. At the bottom of the label it reads "Research Use Only"
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Ordered peptides from Peptide Partners? Mail in a sample (US only) and let us test it.
Test my supply| Date | Result | Test | Lab | Purity | Dosage | Label | COA |
|---|---|---|---|---|---|---|---|
23 Oct 2026 | Pass | Tesamorelin Peptide Partners | lab name | View COA | |||
20 Oct 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
14 Oct 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
12 Oct 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
5 Oct 2026 | Fail | Retatrutide Peptide Partners | lab name | View COA | |||
24 Sep 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
24 Sep 2026 | Pass | Tirzepatide Peptide Partners | lab name | View COA | |||
24 Sep 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
23 Sep 2026 | Pass | Retatrutide Peptide Partners | lab name | View COA | |||
10 Sep 2026 | Pass | Sermorelin Peptide Partners | lab name | View COA | |||
About Peptide Partners test results from Finnrick
Peptide Partners is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 10 peptides and 108 tests, including ratings, observed price signals, recent test dates, and correction history where available.
Finnrick ratings are calculated from published sample data using the selected rating standard. The default standard evaluates purity, dose accuracy, and label quality, then adjusts low-volume results so small sample counts do not appear more certain than the data supports.
The most visible Peptide Partners peptides in this dataset are Retatrutide (34 tests). Use the peptide table above to compare the current Finnrick rating, price per mg, and sample volume for each peptide.
Recent tests and corrections are shown below when available. Samples may be acquired by Finnrick directly or submitted through Finnrick testing programs; the goal is to make safety and supply-chain evidence easier to evaluate than vendor marketing claims alone. This page currently lists 108 recent tests.
Ordered peptides from Peptide Partners? Mail in a sample (US only) and let us test it.
Test my supply