Mazdutide Purity: 88 Lab Tests Across 53 Vendors

42 studies on Mazdutide curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 88 Mazdutide batches across 53 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 →

99.34%
Avg purity
88
Batches tested
53
Manufacturers
5
Underdosed >10%
ManufacturerBatchesAvg purity
Skye Peptides 5 99.41% View COA →
Polaris Peptides 4 99.75% View COA →
PGB 4 99.62% View COA →
Peptide Sciences 4 99.45% View COA →
Felix Chemical Supply 4 99.26% View COA →
Planet Peptide 3 99.72% View COA →
Uther Peptide 3 99.7% View COA →
Tydes 3 99.69% View COA →

Recent certificates: #51583 (99.88%) · #32080 (99.61%) · #33477 (99.33%) · #28638 (99.64%) · #49843 (99.92%) · #43503 (99.44%)

Vendors who tested Mazdutide

Manufacturers with published third-party certificates of analysis for Mazdutide. Open a vendor to see every batch we've verified.

Skye Peptides 5 COAs · 99.4% avg Polaris Peptides 4 COAs · 99.7% avg PGB 4 COAs · 99.6% avg Peptide Sciences 4 COAs · 99.5% avg Felix Chemical Supply 4 COAs · 99.3% avg Planet Peptide 3 COAs · 99.7% avg Tydes 3 COAs · 99.7% avg UTHER 3 COAs · 99.7% avg TMS, LLC 3 COAs · 99.5% avg Elite Research Usa 3 COAs · 99.3% avg Pure Peptide Labs LLC 2 COAs · 99.8% avg Elite Research 2 COAs · 99.5% avg

Research tools

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

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