Penguin Peptides
Ordered peptides from Penguin Peptides? Mail in a sample (US only) and let us test it.
Test my supplyPenguin Peptides has a narrow Tirzepatide-only record that is mostly strong under the purity focus, with recent assays at 99.9% purity and only small fill deviations. The weak point is dispersion from one 98.9% purity miss, and confidence is limited by modest volume plus missing batch identifiers on every record.
Wyoming filings, a mass-agent address, unnamed operators, and conflicting X-channel signals complicate Penguin’s accountability trail. The report also maps public Janoshik entries, COA usability gaps, and a compact affiliate-code network built around personal referral paths.
Unlock original COAs
View and download original lab PDFs for Finnrick tests, including Penguin Peptides rows.
Cancel anytime
| Date | Result | Test | Lab | Purity | Dosage | Label | COA |
|---|---|---|---|---|---|---|---|
16 Jun 2026 | Pass | Tirzepatide Penguin Peptides | lab name | View COA | |||
1 Jun 2026 | Pass | Tirzepatide Penguin Peptides | lab name | View COA | |||
4 Mar 2026 | Fail | Tirzepatide Penguin Peptides | lab name | View COA | |||
19 Jan 2026 | Pass | Tirzepatide Penguin Peptides | lab name | View COA | |||
23 Oct 2025 | Pass | Tirzepatide Penguin Peptides | lab name | View COA | |||
About Penguin Peptides test results from Finnrick
Penguin Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 5 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 Penguin Peptides peptides in this dataset are Tirzepatide (5 tests), KLOW (0 tests) and Retatrutide (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 5 recent tests.
Ordered peptides from Penguin Peptides? Mail in a sample (US only) and let us test it.
Test my supply