Overall findings
Most lab-test failures
Vendors with the most tested samples showing at least one problem.
Investigate 3,071 peptide vendors.
Review testing histories, buyer reports and recorded concerns in one directory.
2614 www.HSpeptides.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-12Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
See who these vendors are.Sign up with your email to see every vendor name in this directory. No payment needed. Pro adds original COAs, batch details and buyer reviews.Sign up to see names
Already have an account? Sign in
2615 Esonix Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2616 Homeopeptide Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2617 The Chosen BioWorks Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-11Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2618 Apple Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-10Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2619 Setting the Bar/Indpendent Peptide Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-10Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2620 Anabolic Lair LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2621 B and G Therapeutics Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2622 HD Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2623 LFG LABS Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2624 Pim Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2625 STABLE RESEARCH LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-09Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2626 DSD Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-08Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2627 FMS Peptide Frank Smith Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-08Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2628 Luminate Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-08Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2629 PEPTIDES IN A PINCH Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-08Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2630 Blue Tide Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-07Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2631 Laine Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-07Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2632 Material Co., Ltd.) Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-07Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2633 Modern Apothecary Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-07Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2634 Research Rat #1 Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-07Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2635 Aventra Pharma Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-05Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2636 Clandestine Bio Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-05Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2637 EC Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-05Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2638 Kuhio Brokerage & Consulting LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-05Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2843 OUROPEPTIDES.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-05Latest test date< 1 year COA history Fewer than 5 applicable tests 0 1
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2639 Nexgen Wellness Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-04Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2640 My Freedom Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-03Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2641 CJT Compounds Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2642 Core Mesa Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2643 hhmpeptide.com Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2644 J&N Nutrition Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2645 KP Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2646 Python Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-06-02Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2647 Moosup Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-31Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2648 Pumps and Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-31Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2649 TJM Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-31Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2650 Paragon Biolabs LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-30Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2651 PM2 Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-30Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2652 True Amino Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-30Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2653 BPA Enterprise LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-28Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2654 IS Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-28Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2655 Prime American Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-28Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2656 Quantum Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-28Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2657 Accupep Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2658 BioNova Labs Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2659 Black Orbit Peptides Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2660 Forefront Marketing LLC Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2661 KE Independent Research Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
2662 NF HELIX (NFHELIX.COM) Explore test results Seller type not reviewed No buyer reviews indexed 1Unique reports 2026-05-27Latest test date< 1 year COA history Fewer than 5 applicable tests 1 0
Lab evidence
Free previewExplore this vendor’s lab reports
Pick a compound, then a report, to see what the lab measured. Each report counts once, and only reports with a source link and a readable result appear here, so this list can hold fewer reports than the total above.
Read the evidence behind the summary.
Open vendor profile
Check the original reports, dates and tested batches.
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
- 120,993
- 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 · 17,264 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.