Oxytocin Purity: 181 Lab Tests Across 111 Vendors

351 studies on Oxytocin curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

We tested 181 Oxytocin batches across 111 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 →

97.76%
Avg purity
181
Batches tested
111
Manufacturers
8
Failed <90% purity
8
Underdosed >10%
ManufacturerBatchesAvg purity
Peptaris 11 99.59% View COA →
Simple Peptide 9 97.3% View COA →
Alpha & Omega 7 98.47% View COA →
Liberty Peptides 6 93.77% View COA →
The Peptique 5 96.79% View COA →
Ion Peptide 4 99.01% View COA →
Unknown vendor (review) 4 97.15% View COA →
Pius Solutions, Inc. 4 95.99% View COA →

Recent certificates: #38584 (99.07%) · #57638 (99.17%) · #31650 (99.97%) · #41225 (99.35%) · #28597 (99.64%) · #52512 (99.26%)

Vendors who tested Oxytocin

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

Peptaris 11 COAs · 99.6% avg Simple Peptide 9 COAs · 97.3% avg Alpha & Omega 7 COAs · 98.5% avg Liberty Peptides 6 COAs · 93.8% avg The Peptique 5 COAs · 96.8% avg Ion Peptide 4 COAs · 99.0% avg Pius Solutions, Inc. 4 COAs · 96.0% avg Oath Research 3 COAs · 99.4% avg Short Chain Aminos 3 COAs · 99.2% avg Treasure Coast Peptides 3 COAs · 98.4% avg Peptide Tech 3 COAs · 97.2% avg Modern Aminos 3 COAs · 94.6% avg

Research tools

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

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