Delta Sleep Inducing Peptide [DSIP] 62568 57 4 PDS 4054 dSIP elisa kit Rat Delta Sleep Inducing Peptide (dSIP) ELISA Kit P01158.1 MyBioSource DSIP Peptide: Potential research functions DSIP Bullit Peptides Researchers gave insomnia induced mice a fusion peptide engineered to slip into the brain. It restored serotonin, dopamine, and melatonin and helped sleep more than plain DSIP. Source: Mu et al.,