Peptides in Under 60 Seconds with Dr. Orel Swenson: DSIP If you're struggling with disrupted sleep, high stress, travel fatigue, or difficulty getting into true deep sleep, DSIP (Delta Sleep Inducing Peptide) may Phosphorylated delta sleep inducing peptide restores spatial memory and p CREB expression by improving sleep architecture at high altitude ScienceDirect Frontiers Pichia pastoris secreted peptides crossing the blood brain barrier and DSIP fusion peptide efficacy in PCPA induced insomnia mouse models Why Is the Neuropeptide DSIP Extremely Beneficial? PARTICLE, s. r. o.