Retatrutide Purity: 13163 Lab Tests Across 2428 Identified Manufacturers

151 studies on Retatrutide curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 13163 Retatrutide batches across 2428 identified manufacturers

Independent certificate-of-analysis evidence from third-party labs — the data behind the studies. Updated as new COAs are verified. Read the full grey-market analysis →

Within that total, 1923 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.66%
Avg purity
13163
Batches tested
2428
Identified manufacturers
29
Failed <90% purity
657
Underdosed >10%
ManufacturerBatchesAvg purity
143 99.77% Reveal with Pro →
142 99.57% Reveal with Pro →
128 99.68% Reveal with Pro →
127 99.42% Reveal with Pro →
122 99.63% Reveal with Pro →
119 99.41% Reveal with Pro →
119 99.36% Reveal with Pro →
106 99.71% Reveal with Pro →

Manufacturer identities are included with Pro. Batch counts and lab measurements remain visible.

Recent certificates: #81448 (99.22%) · #81449 (99.63%) · #81408 (99.243%) · #81359 (99.93%) · #81416 (99.8%) · #81418 (99.81%)

Vendors who tested Retatrutide

Manufacturers with published third-party certificates of analysis for Retatrutide. Names are available with Pro; evidence metrics remain visible.

143 COAs · 99.8% avg 142 COAs · 99.6% avg 128 COAs · 99.7% avg 127 COAs · 99.4% avg 122 COAs · 99.6% avg 119 COAs · 99.4% avg 119 COAs · 99.4% avg 106 COAs · 99.7% avg 105 COAs · 99.8% avg 86 COAs · 99.6% avg 83 COAs · 99.7% avg 81 COAs · 99.7% avg

Research tools

Free, no account — handy when you're working with Retatrutide.

Reconstitution calculator Bac water, concentration & insulin-unit math Verify a COA Look up a report number against our corpus