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1853 Flextide co LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-05-08Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
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1854 MIDNIGHT SUNS PEPTIDES Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-05-05Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
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1855 Modern Medical Wholesalers Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-05-03Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1856 Falcon Pharma Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-29Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1924 Arctic Supply Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-26Latest test date< 1 year COA history Fewer than 5 applicable tests 3 1
Lab evidence
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1857 DMB Research Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-23Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1858 RRPSamples/SCORERo Direct Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-21Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1859 Lumevara / Iron All Day Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-19Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1860 Etsy's Biotech Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-18Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1861 www.vicopeptide.com Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-15Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1862 Centurion Peptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-14Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1863 HHP Health Consulting Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-14Latest test date1+ year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1864 Altitude Health Group Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-11Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1865 Atlas Optimization Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-06Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1866 Morning Peptide Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-05Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1867 Superior Peptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-03Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1868 VERAPEP Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-04-02Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1944 Source Peptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-25Latest test date< 1 year COA history Fewer than 5 applicable tests 2 2
Lab evidence
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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.
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1945 PureGenix Peptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-24Latest test date< 1 year COA history Fewer than 5 applicable tests 2 2
Lab evidence
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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.
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1869 TruLabs Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-22Latest test date1+ year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1870 Crimson Peptide, LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-18Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1958 Ironview Compounds Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-18Latest test date< 1 year COA history Fewer than 5 applicable tests 1 3
Lab evidence
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1871 Enhanced Chem Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-17Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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1946 Integrative Health + Aesthetics Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-17Latest test date< 1 year COA history Fewer than 5 applicable tests 2 2
Lab evidence
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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.
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1959 The Violet Helix Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-15Latest test date< 1 year COA history Fewer than 5 applicable tests 1 3
Lab evidence
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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.
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1872 Hong Kong Lemite Group Limited Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-07Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1873 China Peptides Supplier Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-03-02Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1874 Stryvex LABS Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-28Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1985 Ultima Labs Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-27Latest test date< 1 year COA history Fewer than 5 applicable tests 0 4
Lab evidence
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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.
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1875 Cal-Peps Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-24Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1876 Nexara Labs Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-24Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1877 Paramount Investment Group, INC. Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-24Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1878 Ignite Research LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-22Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1879 S&H Consultants LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-20Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1880 Wuhan Muwang Trading Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-20Latest test date1+ year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1881 Cglpeptide10 Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-06Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1882 RS Distributors Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-05Latest test date1+ year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1883 Vital Chains Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-05Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1884 ARP Health Solutions Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-02-03Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1885 Jigsaw Research Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-29Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1986 Bioprep LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-27Latest test date1+ year COA history Fewer than 5 applicable tests 0 4
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.
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1987 Viogen Pharmaceuticals Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-27Latest test date< 1 year COA history Fewer than 5 applicable tests 0 4
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.
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1988 Monsterlab :: Biotech Scandinavian Pharmaceuticals Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-23Latest test date6+ years COA history Fewer than 5 applicable tests 0 4
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.
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1886 Sunny Sky Peptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-19Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1887 HYTE Research Division Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-18Latest test date1+ year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1888 J.Trotter BioScience/BBB Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-15Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1889 PSY-Peptides/Huai'an Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-13Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1890 Nhancedpeptides Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-12Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1891 Novaglo Group LLC Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-09Latest test date< 1 year COA history Fewer than 5 applicable tests 4 0
Lab evidence
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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.
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1925 RetaEU Netherlands Explore test results Seller type not reviewed No buyer reviews indexed 4Unique reports 2026-01-07Latest test date< 1 year COA history Fewer than 5 applicable tests 3 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.
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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
- 121,052
- 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 · 17,263 unique reports · 38 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 · 57,120 unique reports · 344 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.