Prime Peptides
- Independent results on file
- 10 compounds tested
- COAs on file
- 20
- Independently confirmed
- 20
- Median purity
- 99.72%
- At or above market
- 8/10
- Most recent
- 15 Jun
across 1 lab
lab-sourced
▲ 0.04 vs corpus
compounds comparable
2 months ago
Research use only. This vendor supplies peptides for laboratory and research purposes — not for human consumption or therapeutic use. PeptideBase does not endorse or guarantee product quality. Verify third-party lab testing before any research use.
20 certificates on file, all independently sourced from Janoshik Analytical. Median purity 99.72%, against 99.68% across all 928 certificates we score. Eight of ten compounds test at or above their market median. The exception is a MOTS-c lot at 98.73% — 0.68 points below the 99.41% median for that compound, and the only result here outside the corpus's middle 80%.
Evidence provenance
- 20 lab-sourced
- pulled from a testing lab's own public result database, keyed to the lab's reference number.
Counts as confirmed. Each one came from the lab's own public database — the laboratory is the publisher.
Purity vs market
15 of 20 results sit within ±0.4 points of their market median.
Lab testing record
Every COA we hold for Prime Peptides.
How these certificates can be checked
Of the 20 certificates we hold for Prime Peptides:
- 20Retrieved from the lab
| Panel | Source | Reference | |||||
|---|---|---|---|---|---|---|---|
| Retatrutide | Janoshik Analytical | 15 Jun 26 | 99.50% | −0.23 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Retatrutide | Janoshik Analytical | 26 May 26 | 99.13% | −0.60 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Retatrutide | Janoshik Analytical | 26 May 26 | 99.82% | +0.09 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| AOD-9604 | Janoshik Analytical | 26 May 26 | 99.45% | −0.22 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| TB-500 | Janoshik Analytical | 26 May 26 | 99.52% | +0.07 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| MOTS-c | Janoshik Analytical | 15 May 26 | 98.73% | −0.68 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| TB-500 | Janoshik Analytical | 15 May 26 | 98.89% | −0.56 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| BPC-157 | Janoshik Analytical | 15 May 26 | 99.81% | +0.09 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Tirzepatide | Janoshik Analytical | 28 Apr 26 | 99.88% | +0.08 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 28 Apr 26 | 99.86% | +0.11 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 28 Apr 26 | 99.17% | −0.58 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Melanotan II | Janoshik Analytical | 28 Apr 26 | 99.97% | +0.17 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 28 Apr 26 | 99.75% | ±0.00 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Tirzepatide | Janoshik Analytical | 28 Apr 26 | 99.82% | +0.02 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 10 Apr 26 | 99.68% | −0.07 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semax | Janoshik Analytical | 10 Apr 26 | 99.62% | +0.25 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 16 Feb 26 | 99.52% | −0.23 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Sermorelin | Janoshik Analytical | 16 Feb 26 | 99.80% | +0.49 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Tirzepatide | Janoshik Analytical | 16 Feb 26 | 99.90% | +0.10 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
| Semaglutide | Janoshik Analytical | 22 Jan 26 | 99.79% | +0.04 | — | Independent | View COA ↗ |
| We retrieved this report from Janoshik Analytical's own database. | |||||||
The lab behind these results
In the vendor's own words
Written by the vendor · Not verified by PeptideBase
Prime Peptides is an online vendor of research peptides. PeptideBase holds independent lab results for this vendor concentrated on a smaller set of compounds, several of them tested more than once, taken from Janoshik Analytical's public results database rather than supplied by the vendor. The earliest result on file is from January 2026. Its self-published disclosures — catalogue, shipping terms and contact details — have not yet been assessed.
#Testing disclosure
- Publishes COAsVendor-stated
- Yes
- COA accessVendor-stated
- Published on the vendor’s website
- Named lab(s)Vendor-stated
- Janoshik Analytical
- Last observedOur record
- 4 Aug 2026
- Batch numbers shownOur record
- Not disclosed
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PeptideBase. (2026). Prime Peptides — Research Vendor Profile. Retrieved September 11, 2026, from https://peptidebase.io/research-vendors/prime-peptides