DSIP, delta sleep inducing peptide. Few know it. Fewer use it well. Supports deeper delta wave sleep Improves REM cycles Works the same night it's taken I use it personally. When DSIP Elive Health & Wellness Frontiers Pichia pastoris secreted peptides crossing the blood brain barrier and DSIP fusion peptide efficacy in PCPA induced insomnia mouse models DSIPDelta Sleep Inducing Peptide 2mg 10mg Bulk Supply