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2852 NOVEAUX Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-22Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2853 www.chilonlabs.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-22Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2854 www.chitonlabs.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-22Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2787 Crete Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-20Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2788 Nutrastrips (3) Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-20Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2789 Halsa Biolabs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-18Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2790 HKPura Pep Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-18Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2855 Gb Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-17Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2791 Research Only Club Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-15Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2792 CB Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-13Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2793 Amino-U Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2794 B-Peptides-Aine Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2795 LabRat Peptides/BSF yoyo0 Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2856 OU Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-10Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2796 Peptineal Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-12-08Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2797 Rayshine Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-28Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2798 Bio Hacker Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-26Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2799 Zenpeptide Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-25Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2857 Porta Biologico Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-25Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2858 www.innhopeptide.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-24Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2800 GreenBio Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-22Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2801 Please Be Chill 25 Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-18Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2802 Ryze Chems Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-18Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
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2859 https://euopeptides.com/ Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-14Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2860 PeptideKoning Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-14Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
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2803 Rare Breed Body Shop Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-12Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2804 Shanghai Fushida Chemical Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-12Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2861 Remedium research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-04Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2805 Cup Inc Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-11-01Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2862 peptidgurus.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-31Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2806 999Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-23Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
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2807 Evans Research Co. Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-23Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
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2863 www.globalsources.com/shengshizhiyang .co Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-22Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
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2808 CHW Biotech Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-17Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
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2864 Duole Technology Co Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-17Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2865 peptaura.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-14Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
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2809 Noir Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-13Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
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2866 prolopeptide.in Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-11Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2867 JXL – www.JXL-069.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-10Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2868 Purupsipeptides.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-09Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2810 BIG, LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-07Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2869 RetatrutidePen.co.uk Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-06Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2870 elixserpeptides.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-04Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2811 Lamm Engineering Solutions Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-02Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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2871 Bloom Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-01Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2872 www.researchism.store Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-10-01Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2873 suppetptide.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-09-18Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2874 suppéptide.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-09-18Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2875 Sterox Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-09-16Latest test date1+ year COA history Fewer than 5 applicable tests 0 1
Lab evidence
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2812 Cascade Amino Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2025-09-14Latest test date1+ year COA history Fewer than 5 applicable tests 1 0
Lab evidence
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More reports means more evidence to inspect, not better quality. Each report counts once. Purity and amount percentages require at least five applicable results; explicit endotoxin failures are always shown. Missing measurements are not passes.
Understand the coverage
- Published COA report entries
- 120,981
- Ranked vendors across all seller groups
- 3,071
- Index refresh
Report dates are shown with each test. International classification does not establish factory ownership. U.S. resale does not establish U.S. manufacture.
The first 20 identities in each seller group’s original report-count ranking are shown to signed-in members. Changing the sort order does not change access. Vendors ranked 21 and below in those rankings remain named.
- International vendors
- 30 reviewed vendors · 7,704 unique reports · 19 observed in 30 days
- Compare manufacturers, exporters and other international sellers by their independent lab reports.
- Domestic resellers
- 102 reviewed vendors · 17,266 unique reports · 41 observed in 30 days
- Compare U.S.-based resellers. The seller is domestic; the product may still come from an overseas supplier.
- Seller type not reviewed
- 2,939 vendors · 57,121 unique reports · 363 observed in 30 days
- Sellers with independent lab reports whose seller type we have not reviewed yet.
Each report counts once, even when it tests several compounds or appears in multiple archives. Purity and dose results describe submitted samples, not everything a vendor sells. The methodology and known limitations explain eligibility and exclusions.
Explore recorded findings and compound comparisons
What is a domestic reseller?
A reseller buys from another supplier and sells under its own storefront or brand. Here, domestic means U.S.-based. Local shipping does not mean the product was made in the U.S. or tested after resale. Check the report for the actual batch.
Follow the evidence
Where the tests went wrong.
Recorded failures alongside the number of applicable tests. Choose a seller group to see the results behind each count.
Contamination findings
Failed endotoxin tests
Compare repeated failures in tests for bacterial endotoxins.
Below 97% purity
Low purity results
Vendors with the most measured purity results below 97%.
At least 10% short
Underfilled samples
See where tests found less compound than the stated amount.
Identity findings
Compound not found
Vendors with the most results that did not find the labeled compound.
What these counts include
All available results in the lab-findings comparisons. Each category counts only applicable tests; missing measurements do not count as passes. One sample can appear in several categories, but counts once in the overall total. These are counts of tested samples, not failure rates for everything a vendor sells.
International vendors: Recorded lab dates 2022-06-24 to 2026-10-20. 24 measured results have no usable date.
Domestic resellers: Recorded lab dates 2020-01-31 to 2026-10-22. 143 measured results have no usable date.
Choose your compound
Compare lab results
by compound.
Explore measured results, compare vendors and open their lab reports. These figures cover the same reviewed seller groups as the findings above.
GLP-1 and related compounds
RetatrutideLab results by vendor↗ International vendors1,779 measured results11.2–100% purity in 1,714 results Domestic resellers2,067 measured results33.7–100% purity in 1,915 results TirzepatideLab results by vendor↗ International vendors1,282 measured results40.4–100% purity in 1,248 results Domestic resellers1,436 measured results55.9–100% purity in 1,332 resultsGrowth hormone and related compounds
HGHLab results by vendor↗ International vendors79 measured results90.45–99.9% purity in 76 results Domestic resellers9 measured results96.14–99.84% purity in 9 results TesamorelinLab results by vendor↗ International vendors400 measured results12.7–100% purity in 380 results Domestic resellers582 measured results48.94–99.99% purity in 525 resultsRanges include measured purity above 0%. “Compound not found” is counted separately. The report library has broader coverage; vendor rankings apply their own minimum test counts.
Beyond the lab
What was it like to order?
Buyer reviews cover delivery, communication and service. Each keeps its date and source.