ResearchVerify

Peptide-S

Independent testing record for Peptide-S: 128 third-party lab reports across 11 compounds, tested by 5 analytical laboratories. Built entirely from certificates submitted to ResearchVerify — the vendor has no input into this page.

Total COAs
128
Compounds
11
Testing Labs
5
Avg RV Score
4.90
Purity Range
76.4%–100.0%
🔍 Cross-lab verification

8 batches from this vendor have been independently tested by 2 or more labs — 8 where the labs closely agreed.

⚠ Lowest-purity batch on file

Tesamorelin (batch 5/2/25) tested at 76.42 by Krause Analytical. Shown for completeness — every batch on file is counted here, not only the strongest results.

Purity Tier Distribution

92
Tier 1 (≥99.5%)
23
Tier 2 (≥98.5%)
3
Tier 3 (≥95%)
3
Tier 4 (<95%)

Recent Tests

Compounds Tested

  • Retatrutide · 42 tests
  • Tirzepatide · 40 tests
  • GHK-Cu · 9 tests
  • Tesamorelin · 7 tests
  • Semaglutide · 6 tests
  • BPC-157 · 5 tests
  • Ipamorelin · 4 tests
  • Cagrilintide · 4 tests
  • Mazdutide · 4 tests
  • Survodutide · 4 tests
  • Sermorelin · 3 tests

Testing Labs

  • Krause Analytical · 81 tests
  • Freedom Diagnostics · 19 tests
  • Chromate · 13 tests
  • BTLabs · 12 tests
  • Janoshik · 3 tests
This page is generated automatically from independently-submitted certificates of analysis. ResearchVerify is not affiliated with Peptide-S. Vendors cannot pay to appear here, alter their results, or have this page removed.