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Independent peptide testing · Public results

Independent peptide testing & vendor ratings

PeptideMeter independently tests peptides and related compounds in commercial laboratories and publishes every result — pass or fail. Browse ratings for 211 vendors across 295 products, backed by 28,987 graded samples and 36,959 lab results from 7 rotating labs.

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Top PeptideMeter Ratings

Updated 18 Aug 2026

Tirzepatide(GLP-1 and GIP agonist)

1Tianjin Finder Chemical TFCA2Trusted PeptideA3Risynth BioA4Aavant ResearchA5Nantong Guangyuan Chemical GYCA6Hunan GoodPeptides Biotech CoA7Polaris PeptidesA8Orbitrex PeptidesA9PeptiAtlasA10Shanghai JinBei Chemical TechnologyA11The Naughty NeedleASee all 126 vendors →

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

1Tianjin Finder Chemical TFCA2Bulk Peptide WholesaleA3Paradigm PeptideA4NUPEPS PeptidesA5Peptide PartnersA6Orbitrex PeptidesA7SubQ SocietyA8Pure RawzA9Risynth BioA10Peptide HavenA11NuLife PeptidesASee all 153 vendors →

Semaglutide(GLP-1 agonist)

1Tianjin Finder Chemical TFCA2Bulk Peptide WholesaleA3InjectifyA4Shanghai Sigma Audley SSAA5NextechLabsA6Yiwu Aozuo Trading CoA7Peptide TechnologiesA8Bulk Peptide SupplyA9Glbiochem (Shanghai)A10Pure RawzA11Astro PeptidesASee all 54 vendors →

BPC-157(Bepecin)

1Tianjin Finder Chemical TFCA2Qingdao Sigma Chemical QSCA3Glbiochem (Shanghai)A4Shanghai Sigma Audley SSAA5Wuhan Wansheng Bio (WWB)A6Nantong Guangyuan Chemical GYCA7Peptide PartnersA8Bulk Peptide WholesaleA9Peptide SciencesA10Eternal PeptidesA11Suaway Lab ResearchASee all 70 vendors →

GHK-Cu

1Tianjin Finder Chemical TFCA2Pharma Grade PeptidesA3Qingdao Sigma Chemical QSCA4Bulk Peptide WholesaleA5Orbitrex PeptidesA6Shanghai Sigma Audley SSAA7Atomik LabzA8Glbiochem (Shanghai)A9Heman Peptide HMA10Nantong Guangyuan Chemical GYCA11Wuhan Wansheng Bio (WWB)ASee all 52 vendors →

Ipamorelin(GHS agonist)

1Tianjin Finder Chemical TFCA2Peptide PartnersA3InjectifyA4Peptide SciencesA5Qingdao Sigma Chemical QSCA6Planet PeptideA7Yiwu Aozuo Trading CoA8NUPEPS PeptidesA9Accelerate LabsA10Shanghai Sigma Audley SSAA11Wuhan Wansheng Bio (WWB)ASee all 54 vendors →

211

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

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28,987

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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