HK Peptides
PT-141
Finnrick tested 7 samples of PT-141 (Bremelanotide) from HK Peptides between 19 Aug 2025 and 10 Mar 2026. Test scores average over 4, no score below 3, and at least 6 tests warrant a confident Finnrick Rating of D (Poor).
Finnrick Rating™
HK Peptides
PT-141
Tested 7 Samples
Last test 10 Mar 2026
Take Action
Free peptide testing
Mail in a sample (US only) to get confidence for the specific vials you have, and contribute to identifying unsafe supply chains, so other people can avoid risky and costly mistakes.
Other PT-141 tests from top-rated vendors:
All PT-141 tests from HK Peptides
Samples are tested in commercial labs
Tests Count
7
Scores
AVGMINMAX
Last
10 Mar 2026
First
19 Aug 2025
| Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 10 Mar 2026 | View | 10mg | 17.2mg | +72.0% | 99.70% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 1 Mar 2026 | View | 10mg | 10mg | 99.80% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab G | Public | ||
| 20 Feb 2026 | View | 10mg | 10.4mg | +4.0% | 99.90% | Green Lid P41 | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 25 Nov 2025 | View | 10mg | 8.79mg | -12.1% | 99.74% | (no batch ID) | No Label / Silver Crimp / Red Cap | Lab E | Public | |
| 29 Oct 2025 | View | 10mg | 10mg | 99.82% | (no batch ID) | White Label / Silver Crimp / Green Cap | Lab E | Public | ||
| 23 Oct 2025 | View | 10mg | 9.56mg | -4.4% | 99.78% | (no batch ID) | No Label / Silver Crimp / Green Cap | Lab E | Public | |
| 19 Aug 2025 | View | 10mg | 9.75mg | -2.5% | 99.95% | 07/21/2025 | White Label / Silver Crimp / Red Cap | Lab A | Public | |