This independent UPLC-MS lab test confirms PT-141 9.95mg from Direct Peptides at 99.13% purity. The analysis was conducted by Horizon Analytical on January 12, 2026. PT-141 is a peptide researched for its role in sexual arousal, erectile function, and libido support. A purity level of 99.13% indicates minimal contamination and high-grade synthesis. The full certificate of analysis is available for download on this page.
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