Peptide Partners
Finnrick has tested 75 samples from Peptide Partners across 7 products.
peptide.partnersFinnrick verified this link on 10 Oct 2025
Vendor-Supplied Policies
Batch Identification Policy
Sample Authentication Guidance
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Products
| Tests | ||||||||
|---|---|---|---|---|---|---|---|---|
| Product | Rating | Count | Avg | Min | Max | Oldest | Most Recent | |
| Ipamorelin | 7 | 23 Oct 2025 | 15 Feb 2026 | |||||
| Retatrutide | 22 | 17 Jul 2025 | 12 Jun 2026 | |||||
| TB-500 | 11 | 30 Jan 2026 | 4 Mar 2026 | |||||
| BPC-157 | 8 | 23 Oct 2025 | 28 Apr 2026 | |||||
| Tesamorelin | 11 | 30 Jan 2026 | 20 Feb 2026 | |||||
| CJC-1295 | 9 | 4 Nov 2025 | 15 Feb 2026 | |||||
| Tirzepatide | 6 | 11 Jun 2025 | 3 Oct 2025 | |||||
Some samples were submitted by Peptide Partners as part of the Launch with Finnrick vendor support program. Samples are otherwise 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 27 overall satisfaction reports
People who submitted test requests to Finnrick gave Peptide Partners an average satisfaction rating of 4.8 out of 5 across 27 reports associated with samples received and tested by Finnrick.
Most recent Peptide Partners tests
Samples are tested in commercial labs
tests
products
Scores
First
Last
| Quantity | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Product | Certificate | Variant | Test Score | Label | Batch | Tested | Difference | Purity | Endotoxins | Batch ID | Container | Tested At | Sent By |
| 12 Jun 2026 | Retatrutide | View | 24mg | 26.3mg | 22.7mg | -13.7% | 99.90% | low | RT202604 | White label / Silver crimp / Violet cap | Lab E | Public | ||
| 8 May 2026 | Retatrutide | View | 24mg | (no batch claim) | 21.4mg | -10.8% | 99.90% | below LOQ | RT202603 | White Label / Silver Crimp / Violet Cap | Lab E | Public | ||
| 28 Apr 2026 | Retatrutide | View | 24mg | (no batch claim) | 23.4mg | -2.5% | 99.90% | n/a | RT202602 | White Label / Silver Crimp / Violet Cap | Lab E | Public | ||
| 28 Apr 2026 | BPC-157 | View | 10mg | (no batch claim) | 13mg | +30.0% | 99.40% | below LOQ | BC202604 | White Label / Silver Crimp / Yellow Cap | Lab E | Public | ||
| 23 Apr 2026 | Retatrutide | View | 24mg | (no batch claim) | 22.5mg | -6.3% | 99.90% | n/a | RT202602 | White Label / Silver Crimp / Violet Cap | Lab E | Public | ||
| 4 Mar 2026 | TB-500 | View | Thymosin Beta-4 | 10mg | (no batch claim) | 10.7mg | +7.0% | 98.73% | below LOQ | TB202601 | White Label / Silver Crimp / Blue Cap | Lab E | Public | |
| 4 Mar 2026 | BPC-157 | View | 10mg | (no batch claim) | 10.7mg | +7.0% | 98.87% | below LOQ | BP202512 | White Label / Silver Crimp / Yellow Cap | Lab E | Public | ||
Corrections
- 10 Oct 2025:
- Peptide Partners have elected to have all their samples tested against the label claim. The "batch claim" from COAs is not taken into account. Some test scores have been updated accordingly.
About Peptide Partners Test Results From Finnrick
Peptide Partners 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 7 products and 75 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.
Peptide Partners Testing Activity & Score Summary
In the past 30 days, Finnrick has published 1 new test result for Peptide Partners, and 5 in the past three months. The overall dataset includes 75 tested samples with an average score of 8.2/10 across all products.
Across 74 identity-tested samples, 100% were confirmed to contain the expected peptide (identity pass rate). Among those that passed, median purity was 99.8%. Approximately 96% of passing samples tested at or above 98% purity.
Here is a closer look at the most frequently tested products (top 3):
- Retatrutide (22 tests, 100% identity pass, median purity 99.9%) — Test scores are highly variable, ranging from 6.7 to 10.0 (average 8.7/10), suggesting significant batch-to-batch differences.
- TB-500 (11 tests, 100% identity pass, median purity 99.2%) — Test scores are highly variable, ranging from 6.5 to 10.0 (average 8.1/10), suggesting significant batch-to-batch differences.
- Tesamorelin (11 tests, 100% identity pass, median purity 99.7%) — Test scores are highly variable, ranging from 5.3 to 10.0 (average 7.8/10), suggesting significant batch-to-batch differences.