DSIP (Delta SleepInducing Peptide) is a naturally occurring neuropeptide first isolated in 1974. It's best known for its potential role in regulating sleep, stress, and neuroendocrine function. Here's a clear breakdown of DSIP Peptide vs Melatonin: Which Is Better for Sleep? Victory Select DSIP (Delta Sleep Inducing Peptide): Benefits, Dosage, and Risks Expla DSIP 5mg Peptide Bluewell Peptides Amazon.com: Nutrosleep PEP19 Sleep Support Supplement Helps Support Restful Sleep, Sleep Quality, and Sleep Duration GLP 1 Support, Non Habit Forming Peptide Formula for Women and Men, 30 Capsules : Health & Household