Tesamorelin
We've tested 128 samples of Tesamorelin sourced from 20 vendors between 7 May 2025 and 6 Jan 2026. Purity varies from 12.70% to 100.00%, and quantity can diverge by up to +/-100% vs advertised value.
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Vendors
| Tests | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Vendor | Rating | Count | Avg | Min | Max | Oldest | Most Recent | ||
 | 3 | 24 Jul 2025 | 4 Aug 2025 | ||||||
 | 3 | 14 May 2025 | 5 Aug 2025 | ||||||
| 13 | 4 Aug 2025 | 29 Dec 2025 | ||||||
 | 6 | 13 Jun 2025 | 9 Oct 2025 | ||||||
 | 17 | 29 Jun 2025 | 17 Dec 2025 | ||||||
| 9 | 9 Sep 2025 | 25 Nov 2025 | ||||||
| 6 | 4 Aug 2025 | 4 Nov 2025 | ||||||
 | 10 | 27 Jun 2025 | 17 Nov 2025 | ||||||
| 20 | 9 Jun 2025 | 21 Oct 2025 | ||||||
 | 12 | 29 Jun 2025 | 21 Oct 2025 | ||||||
| 9 | 11 Aug 2025 | 17 Dec 2025 | ||||||
| 6 | 27 Jun 2025 | 9 Oct 2025 | ||||||
 | 4 | 7 May 2025 | 21 May 2025 | ||||||
| 3 | 21 Oct 2025 | 6 Dec 2025 | ||||||
 | 1 | 9 Oct 2025 | 9 Oct 2025 | ||||||
| 1 | 24 Jul 2025 | 24 Jul 2025 | ||||||
| 1 | 24 Jul 2025 | 24 Jul 2025 | ||||||
| 1 | 27 Jun 2025 | 27 Jun 2025 | ||||||
| 1 | 29 Jun 2025 | 29 Jun 2025 | ||||||
| 1 | 29 Jun 2025 | 29 Jun 2025 | ||||||
Most recent Tesamorelin tests
Samples are tested in commercial labs
| Quantity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Test Date | Vendor | Certificate | Test Score | Label | Tested | Difference | Purity | Batch ID | Container | Tested At | Sent By |
| 29 Dec 2025 | HK Peptides | View | 10mg | 10.6mg | +6.0% | 99.95% | 11/16/25 | White Label / Silver Crimp / Black Cap | Lab E | Public | |
| 17 Dec 2025 | HK Peptides | View | 10mg | 9.8mg | -2.0% | 98.64% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 17 Dec 2025 | HK Peptides | View | 10mg | 10.4mg | +4.0% | 99.33% | (no batch ID) | No Label / Silver Crimp / White Cap | Lab E | Public | |
| 17 Dec 2025 | Wuhan Wansheng Biotechnology | View | 10mg | 10mg | 99.95% | TSM10(0) | (no data) | Lab E | Public | ||
| 17 Dec 2025 | Nexaph | View | 10mg | 9.74mg | -2.6% | 88.39% | TES1010162025-13 | No Label / Black Crimp / Brown Cap | Lab E | Public | |
| 6 Dec 2025 | LN Peptides | View | 20mg | ⚠️ Sample does not contain Tesamorelin | (no batch ID) | No Label / Silver Crimp / Clear Pink Cap | Lab E | Public | |||
| 6 Dec 2025 | HK Peptides | View | 10mg | 10.3mg | +3.0% | 99.95% | (no batch ID) | White Label / Silver Crimp / Black Cap | Lab E | Public | |
Corrections
- 17 Nov 2025: Peptide Sciences
- Test results for sample pst3r4y were published from 31 Oct to 17 Nov 2025, but did not belong to Peptide Sciences: the sample was misidentified, and re-attributed to the correct vendor.