This independent UPLC-MS lab test confirms DSIP 9.68mg from Direct Peptides at 99.54% purity. The analysis was conducted by Horizon Analytical on March 6, 2026. DSIP (Delta Sleep-inducing Peptide) is a peptide researched for its role in sleep quality, circadian rhythm regulation, and restorative sleep support. A purity level of 99.54% indicates minimal contamination and high-grade synthesis. The full certificate of analysis is available for download on this page.
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