Marvel Pep
Finnrick has tested 21 samples from Marvel Pep across 2 products.
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Products
| Tests | ||||||||
|---|---|---|---|---|---|---|---|---|
| Product | Rating | Count | Avg | Min | Max | Oldest | Most Recent | |
| GHK-Cu | 4 | 17 Dec 2025 | 13 Jul 2026 | |||||
| Retatrutide | 16 | 16 Dec 2025 | 9 Aug 2026 | |||||
The Marvel Pep samples tested by Finnrick were either acquired by Finnrick directly, or submitted by the public.
Customer Reviews
These indicators of customer satisfaction are based on reports submitted by the public through the Finnrick testing program, and are not verified.
Based on 22 overall satisfaction reports
People who submitted test requests to Finnrick gave Marvel Pep an average satisfaction rating of 5.0 out of 5 across 22 reports associated with samples received and tested by Finnrick. Customers rated delivery speed (4.5/5) comparatively lower.
Most recent Marvel Pep tests
Samples are tested in commercial labs
tests
products
Scores
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| Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Product | Certificate | Test Score | Label | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 9 Aug 2026 | Retatrutide | View | 10mg | 9.5mg | -5.0% | 99.60% | n/a | April 19, 2026 | No label / Gold crimp / Clear cap | Lab G | Public | |
| 9 Aug 2026 | Retatrutide | View | 10mg | 10.2mg | +2.0% | 99.70% | n/a | 260139 | White label / Silver crimp / White cap | Lab G | Public | |
| 6 Aug 2026 | Retatrutide | View | Endotoxins | 10mg | n/a | n/a | n/a | low | April 19, 2026 | No label / Gold crimp / Clear cap | Lab G | Public |
| 3 Aug 2026 | Retatrutide | View | 40mg | 34mg | -15.0% | 99.90% | n/a | March 7, 2026 | White label / Blue crimp / Clear cap | Lab E | Public | |
| 30 Jul 2026 | Retatrutide | View | 20mg | 21.2mg | +6.0% | 99.80% | n/a | 258014 | No Label / Silver Crimp / White Cap | Lab G | Public | |
| 13 Jul 2026 | GHK-Cu | View | 50mg | 40.7mg | -18.6% | 99.90% | below LOQ | May 6, 2026 | No label / Silver crimp / Blue cap | Lab E | Public | |
| 13 Jul 2026 | Retatrutide | View | 10mg | 10.8mg | +8.0% | 99.20% | below LOQ | (no batch ID) | No label / Copper crimp / Clear cap | Lab E | Public | |
About Marvel Pep Test Results From Finnrick
Marvel Pep 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 2 products and 21 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) and customer satisfaction reports with sub-scores that provide additional context. Use the table above to review purity, quantity accuracy, consistency between batches, and any notable outliers surfaced in Finnrick testing data.
Marvel Pep Testing Activity & Score Summary
In the past 30 days, Finnrick has published 4 new test results for Marvel Pep, and 9 in the past three months. The overall dataset includes 21 tested samples with an average score of 8.4/10 across all products.
Across 20 identity-tested samples, 100% were confirmed to contain the expected peptide (identity pass rate). Among those that passed, median purity was 99.8%. Approximately 100% of passing samples tested at or above 98% purity.
Here is a closer look at the most frequently tested products (top 2):
- Retatrutide (16 tests, 100% identity pass, median purity 99.8%) — Test scores are highly variable, ranging from 5.4 to 10.0 (average 8.4/10), suggesting significant batch-to-batch differences.
- GHK-Cu (4 tests, 100% identity pass, median purity 99.9%) — Test scores are highly variable, ranging from 7.2 to 10.0 (average 8.5/10), suggesting significant batch-to-batch differences.