Delta sleep-inducing peptide (DSIP) is a nine amino acid peptide that plays various physiological and endocrine roles. It has been associated with altering corticotropin levels, improving sleep patterns, normalizing blood pressure, inhibiting somatostatin secretion, limiting stress, and reducing pain perception.

Furthermore, DSIP may have potential applications in the prevention of free radical damage, cancer treatment, and depression.

Check out Jay Campbell's website, which is an excellent source for peptide research.