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DSIP (Delta Sleep-Inducing Peptide) is a synthetic nonapeptide originally isolated from the cerebral venous blood of rabbits during slow-wave sleep induction experiments conducted by Monnier and colleagues in the 1970s

doi: 10.3390/ph19020235

Hims & Hers acquired a US-based peptide facility in 2025

In its lawsuit, Eli Lilly argued that Empower is deceptively advertising its products as personalized when theyre actually mass produced in limited dosage forms, citing information on the companys website

For researchers handling multiple peptide types simultaneously, our guides on general peptide reconstitution and mixing peptides with bacteriostatic water provide the universal technique that applies across all compounds