This independent UPLC-MS lab test confirms Oxytocin 4.79mg from Direct Peptides at 99.41% purity. The analysis was conducted by Horizon Analytical on March 6, 2026. Oxytocin is a nonapeptide hormone researched for its role in social bonding, trust, and emotional support. A purity level of 99.41% indicates minimal contamination and high-grade synthesis. The full certificate of analysis is available for download on this page.
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