Peptide Gurus
Finnrick has tested 46 samples from Peptide Gurus across 8 products.
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Products
| Tests | ||||||||
|---|---|---|---|---|---|---|---|---|
| Product | Rating | Count | Avg | Min | Max | Oldest | Most Recent | |
| Semaglutide | 6 | 16 Mar 2025 | 25 Mar 2025 | |||||
| BPC-157 | 7 | 16 Mar 2025 | 15 May 2025 | |||||
| CJC-1295 | 6 | 16 Mar 2025 | 21 Mar 2025 | |||||
| Ipamorelin | 7 | 20 Mar 2025 | 14 May 2025 | |||||
| Melanotan II | 3 | 16 Mar 2025 | 16 Mar 2025 | |||||
| PT-141 | 3 | 16 Mar 2025 | 16 Mar 2025 | |||||
| Retatrutide | 7 | 16 Mar 2025 | 3 Jul 2025 | |||||
| Tirzepatide | 7 | 16 Mar 2025 | 27 Apr 2026 | |||||
The Peptide Gurus samples tested by Finnrick were either acquired by Finnrick directly, or submitted by the public.
Most recent Peptide Gurus tests
Samples are tested in commercial labs
tests
products
Scores
First
Last
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Product | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 27 Apr 2026 | Tirzepatide | View | 15mg | 15.9mg | +6.0% | 99.60% | (no batch ID) | Black Label / Silver Crimp / White Cap | Lab G | Public | |
| 3 Jul 2025 | Retatrutide | View | 5mg | 4.91mg | -1.8% | 98.39% | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 15 May 2025 | BPC-157 | View | 5mg | 4.86mg | -2.8% | 96.97% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab A | Public | |
| 14 May 2025 | Ipamorelin | View | 5mg | 3.4mg | -32.0% | 98.16% | (no batch ID) | No Label / Copper Crimp / Clear Cap | Lab A | Public | |
| 27 Mar 2025 | Retatrutide | View | 10mg | ⚠️ Sample does not contain Retatrutide | (no batch ID) | No Label / Silver Crimp / White caps | Lab C | Finnrick | |||
| 27 Mar 2025 | Retatrutide | View | 10mg | ⚠️ Sample does not contain Retatrutide | (no batch ID) | No Label / Silver Crimp / White caps | Lab C | Finnrick | |||
| 27 Mar 2025 | Retatrutide | View | 10mg | ⚠️ Sample does not contain Retatrutide | (no batch ID) | No Label / Silver Crimp / White caps | Lab C | Finnrick | |||
Corrections
- 6 Apr 2025: Ipamorelin
- Lab A tests 20 Mar 2025: udpated quantity. Error in analysis by lab, quantity was incorrectly reported as 7.009mg, 6.887mg, 6.942mg. Lab issued an updated test certificate.
About Peptide Gurus Test Results From Finnrick
Peptide Gurus is a peptide vendor with multiple products tracked in the independent testing dataset collected by Finnrick. This page compiles recent, batch-level test results across 8 products and 46 tests, including scores, test dates, batch IDs, and lab details. This enables you to compare quality over time, not just marketing claims.
Each tested sample receives a 0–10 score, with 10 being the best possible value. It is the total of three components: purity (0–4 points), quantity accuracy vs. the label or batch claim (0–4 points), and batch information quality (0–2 points).
When several test results are available for a product and vendor pair, you’ll also find a Finnrick Rating (A–E, where A is best and E is worst, X if an insufficient number of tests is available, or F in rare cases of documented and widespread fraud). Use the table above to review purity, quantity accuracy, consistency between batches, and any notable outliers surfaced in Finnrick testing data.
Peptide Gurus Testing Activity & Score Summary
In the past 30 days, Finnrick has published no new test results for Peptide Gurus, and 1 in the past three months. The overall dataset includes 46 tested samples with an average score of 3.6/10 across all products.
Across 46 identity-tested samples, 87% were confirmed to contain the expected peptide (identity pass rate). Among those that passed, median purity was 98.9%. Approximately 75% of passing samples tested at or above 98% purity.
Here is a closer look at the most frequently tested products:
- Tirzepatide (7 tests, 100% identity pass, median purity 99.4%) — Test scores are highly variable, ranging from 2.2 to 6.9 (average 3.8/10), suggesting significant batch-to-batch differences.