Barn
Ordered peptides from Barn? Mail in a sample (US only) and let us test it.
Test my supplyBarn's purity-focus record is narrow but mostly supported by Retatrutide, where earlier identity, purity, and fill results were clean. The signal is less settled after a recent Retatrutide reversal at 98.2% purity with +24% fill, and mixed batch documentation, including a no-batch result, keeps certainty limited.
Barn’s public footprint contracted sharply: the storefront and COA library went empty while policy pages failed. The report follows the unverified U.S. lab identity, a Guangzhou operator signal, and UCTS-linked USPS counterfeit-postage complaints.
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| Date | Result | Test | Lab | Purity | Dosage | Label | COA |
|---|---|---|---|---|---|---|---|
8 Jun 2026 | Fail | Retatrutide Barn | lab name | View COA | |||
6 Jun 2026 | Incomplete | Retatrutide Barn | lab name | View COA | |||
21 May 2026 | Incomplete | Retatrutide Barn | lab name | View COA | |||
13 May 2026 | Pass | Retatrutide Barn | lab name | View COA | |||
11 May 2026 | Pass | Retatrutide Barn | lab name | View COA | |||
6 Mar 2026 | Pass | Retatrutide Barn | lab name | View COA | |||
6 Mar 2026 | Pass | Retatrutide Barn | lab name | View COA | |||
About Barn test results from Finnrick
Barn is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 7 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 Barn peptides in this dataset are Retatrutide (7 tests), BPC-157 (0 tests) and GHK-Cu (0 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 7 recent tests.
Ordered peptides from Barn? Mail in a sample (US only) and let us test it.
Test my supply