Peptide SciencesRetatrutide
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Ordered Retatrutide from Peptide Sciences? Mail in a sample (US only) and let us test it for free.
Peptide Sciences retatrutide shows a volatile record: repeated 0 mg identity failures, +45–46% overfills, and purity misses near 99.0–99.4%. Post-shutdown public tests still swing from spring 2026 failures to a later pass.
The dossier follows a post-shutdown P-Sciences lookalike through WHOIS, a Fort Lauderdale mail-drop, Florida registry searches and crypto payment rails. It also separates stale coupon funnels, QR Peptides and peptides.gg from the original brand.
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Free peptide testing
Ordered Retatrutide from Peptide Sciences? Mail in a sample (US only) and let us test it for free.
| Date | Result | Test | Lab | Purity | Dosage | Label | COA |
|---|---|---|---|---|---|---|---|
| 17 Jun 2026 | Pass | f74xe9h Tested | lab name | View COA | |||
| 28 Apr 2026 | Fail | n552547 Tested | lab name | View COA | |||
| 28 Apr 2026 | Fail | 4z9e34c Tested | lab name | View COA | |||
| 2 Apr 2026 | Fail | tzr2h9t Tested | lab name | View COA | |||
| 2 Mar 2026 | Pass | ercwp62 Tested | lab name | View COA | |||
| 13 Feb 2026 | Pass | tsxnhwr Tested | lab name | View COA | |||
| 11 Feb 2026 | Pass | fru5vat Tested | lab name | View COA | |||
| 4 Aug 2025 | Fail | dvrsr84 Tested | lab name | View COA | |||
| 4 Aug 2025 | Fail | 3wkeecc Tested | lab name | View COA | |||
| 17 Jul 2025 | Pass | rzmwg9e Tested | lab name | View COA | |||
About Peptide Sciences test results from Finnrick
Peptide Sciences is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 10 peptides and 132 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 Sciences peptides in this dataset are Semaglutide (15 tests), Retatrutide (41 tests) and Melanotan II (10 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 132 recent tests.
Free peptide testing
Ordered Retatrutide from Peptide Sciences? Mail in a sample (US only) and let us test it for free.