Mazdutide Purity: 55 Lab Tests Across 29 Vendors

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

We tested 55 Mazdutide batches across 29 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 →

99.26%
Avg purity
55
Batches tested
29
Manufacturers
3
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 →
Planet Peptide 3 99.72% View COA →
Uther Peptide 3 99.7% View COA →
Tydes 3 99.69% View COA →
Elite Research Usa 3 99.29% View COA →

Recent certificates: #15034 (99.884%) · #19780 (99.677%) · #2128 (98.74%) · #2147 (99.34%) · #12321 (99.152%) · #19301 (99.866%)

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 Planet Peptide 3 COAs · 99.7% avg Tydes 3 COAs · 99.7% avg UTHER 3 COAs · 99.7% avg Elite Research Usa 3 COAs · 99.3% avg Xcel Peptides 2 COAs · 99.5% avg Eros Labs 2 COAs · 99.4% avg QSC 2 COAs · 99.3% avg Pharma Grade Peptides 2 COAs · 98.7% 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