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Independent peptide testing · Public results

Trust the data, not the label.

PeptideDetective protects the public by testing peptides and exposing supply-chain failures. We've analyzed 16,294 samples from 198 vendors across 295 products in independent commercial labs — and published every result. How we test →

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Top PeptideDetective Ratings

Updated 21 Aug 2026

Tirzepatide(GLP-1 and GIP agonist)

1 Tianjin Finder Chemical TFC
A
 2 Trusted Peptide
A
 3 Risynth Bio
A
 4 Aavant Research
A
 5 Nantong Guangyuan Chemical GYC
A
 6 Hunan GoodPeptides Biotech Co
A
 7 Polaris Peptides
A
 8 Orbitrex Peptides
A
 9 PeptiAtlas
A
 10 Shanghai JinBei Chemical Technology
A
 11 The Naughty Needle
A
 See all 126 vendors →

Retatrutide(GLP-1, GIP, and GCGR agonist)

1 Tianjin Finder Chemical TFC
A
 2 Bulk Peptide Wholesale
A
 3 Paradigm Peptide
A
 4 NUPEPS Peptides
A
 5 Peptide Partners
A
 6 Orbitrex Peptides
A
 7 SubQ Society
A
 8 Pure Rawz
A
 9 Risynth Bio
A
 10 Peptide Haven
A
 11 NuLife Peptides
A
 See all 153 vendors →

Semaglutide(GLP-1 agonist)

1 Tianjin Finder Chemical TFC
A
 2 Bulk Peptide Wholesale
A
 3 Injectify
A
 4 Shanghai Sigma Audley SSA
A
 5 NextechLabs
A
 6 Yiwu Aozuo Trading Co
A
 7 Peptide Technologies
A
 8 Bulk Peptide Supply
A
 9 Glbiochem (Shanghai)
A
 10 Pure Rawz
A
 11 Astro Peptides
A
 See all 54 vendors →

BPC-157(Bepecin)

1 Tianjin Finder Chemical TFC
A
 2 Qingdao Sigma Chemical QSC
A
 3 Glbiochem (Shanghai)
A
 4 Shanghai Sigma Audley SSA
A
 5 Wuhan Wansheng Bio (WWB)
A
 6 Nantong Guangyuan Chemical GYC
A
 7 Peptide Partners
A
 8 Bulk Peptide Wholesale
A
 9 Peptide Sciences
A
 10 Eternal Peptides
A
 11 Suaway Lab Research
A
 See all 70 vendors →

GHK-Cu

1 Tianjin Finder Chemical TFC
A
 2 Pharma Grade Peptides
A
 3 Qingdao Sigma Chemical QSC
A
 4 Bulk Peptide Wholesale
A
 5 Orbitrex Peptides
A
 6 Shanghai Sigma Audley SSA
A
 7 Atomik Labz
A
 8 Glbiochem (Shanghai)
A
 9 Heman Peptide HM
A
 10 Nantong Guangyuan Chemical GYC
A
 11 Wuhan Wansheng Bio (WWB)
A
 See all 52 vendors →

Ipamorelin(GHS agonist)

1 Tianjin Finder Chemical TFC
A
 2 Peptide Partners
A
 3 Injectify
A
 4 Peptide Sciences
A
 5 Qingdao Sigma Chemical QSC
A
 6 Planet Peptide
A
 7 Yiwu Aozuo Trading Co
A
 8 NUPEPS Peptides
A
 9 Accelerate Labs
A
 10 Shanghai Sigma Audley SSA
A
 11 Wuhan Wansheng Bio (WWB)
A
 See all 54 vendors →

Fresh from the lab

Most recent results

Watchlist & insights

Updated 21 Aug 2026
Biggest failure on record
E

Tirzepatide

Sold by Shenzhen Jiechuang Trading · tested 24 May 2026 · compound not detected.

0.0
Score / 10
30mg
Label claim
None
Detected

The data so far

Live aggregate
218
Vendors rated
35,156
Samples graded
45%
Rated A
A 98
B 40
C 31
D 9
E 12
X 28
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198

Vendors tested and rated across multiple products, providing comprehensive supply chain transparency.

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16,294

Individual samples tested in commercial labs, with purity and quantity analysis for each.

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295

Products covered in our testing program across peptides, oral tablets, injectable oils, and raw materials.

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For Vendors

Vendor Support

PeptideDetective welcomes vendors to participate in our testing program. We test your products for free and provide detailed reports that can help you improve quality.

Participating vendors receive a PeptideDetective certificate that they can display to build trust with their customers.

Vendor Support → Free Test →

For Everyone

Free Sample Testing

Got a vial and want to know what's in it? PeptideDetective will test it for free. Send us your sample and we'll have it analyzed by a commercial lab.

Results are published transparently for the benefit of the community.

Submit a Sample →

Our Mission

Making Sovereign Health Safer

PeptideDetective conducts an aggressive program of testing peptides and other compounds to promote safety in the supply chain.

We believe that transparency and independent testing are essential for consumer protection in unregulated markets.

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Research Access

Full Data Access

Researchers and analysts can request full access to our database of peptide test results for academic or journalistic purposes.

We support transparency and open data for the advancement of public health research.