Tirzepatide Purity: 7722 Lab Tests Across 1544 Vendors

675 studies (9 from unattributed sources) on Tirzepatide curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 7722 Tirzepatide batches across 1544 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 →

99.69%
Avg purity
7722
Batches tested
1544
Manufacturers
10
Failed <90% purity
376
Underdosed >10%
ManufacturerBatchesAvg purity
Bfflist Amo 247 99.61% View COA →
Sry Labs 207 99.55% View COA →
Shanghai Sigma Audley Ssa 140 99.56% View COA →
Hk Peptides 133 99.76% View COA →
Allen Biotechnology Co Abc 125 99.66% View COA →
Planet Peptide 105 99.76% View COA →
GYC 96 99.73% View COA →
Zlz Peptide 94 99.72% View COA →

Recent certificates: #63656 (99.855%) · #63634 (99.689%) · #63743 (99.823%) · #27962 (99.94%) · #28001 (99.52%) · #30760 (99.98%)

Vendors who tested Tirzepatide

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

AMO 247 COAs · 99.6% avg SRY 207 COAs · 99.6% avg SSA 140 COAs · 99.6% avg Hk Peptides 133 COAs · 99.8% avg ABC 125 COAs · 99.7% avg Planet Peptide 105 COAs · 99.8% avg GYC 96 COAs · 99.7% avg ZLZ 94 COAs · 99.7% avg QSC 82 COAs · 99.6% avg Nexaph 68 COAs · 99.6% avg UTHER 65 COAs · 99.8% avg Oupeptide 65 COAs · 99.6% avg

Research tools

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

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