Delta Sleep Inducing Peptide [DSIP] 62568 57 4 PDS 4054 Delta Sleep Inducing Peptide an overview ScienceDirect Topics Still injecting in the same spot every time? Read this. Where you inject your peptides can actually affect absorption, comfort, and results. Quick guide: Abdomen: fastest absorption Upper arms DSIP Peptide Sleep & Stress Support Beverly Hills Emideltide DSIP peptide DSIP Peptide Sleep & Stress Support Beverly Hills