DSIP 5mg

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first isolated from rabbit brain in 1977 by Schoenenberger and Monnier. It was identified based on its ability to induce delta (slow-wave) sleep when injected into recipient rabbits. DSIP is found endogenously in both free and bound forms in human blood, and its concentrations show circadian variation, supporting a physiological role in sleep-wake regulation. The mechanism of action of DSIP remains incompletely characterized despite decades of research. It appears to act as a sleep-promoting substance that modulates rather than directly induces sleep. DSIP influences multiple neuroendocrine axes: it has been shown to modulate corticotropin (ACTH) and cortisol release, suggesting interactions with the hypothalamic-pituitary-adrenal (HPA) axis. It also affects LH secretion and has been shown to influence somatostatin and somatotropin release patterns. Beyond sleep, DSIP has been investigated for stress-protective properties. It appears to normalize disrupted circadian rhythms and has demonstrated anxiolytic-like effects in animal models. Some researchers have proposed that DSIP functions as a broad neuromodulatory factor rather than a specific sleep peptide, given its wide range of physiological effects including altered pain perception and modulation of opioid receptor activity.

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first isolated from rabbit brain in 1977 by Schoenenberger and Monnier. It was identified based on its ability to induce delta (slow-wave) sleep when injected into recipient rabbits. DSIP is found endogenously in both free and bound forms in human blood, and its concentrations show circadian variation, supporting a physiological role in sleep-wake regulation. The mechanism of action of DSIP remains incompletely characterized despite decades of research. It appears to act as a sleep-promoting substance that modulates rather than directly induces sleep. DSIP influences multiple neuroendocrine axes: it has been shown to modulate corticotropin (ACTH) and cortisol release, suggesting interactions with the hypothalamic-pituitary-adrenal (HPA) axis. It also affects LH secretion and has been shown to influence somatostatin and somatotropin release patterns. Beyond sleep, DSIP has been investigated for stress-protective properties. It appears to normalize disrupted circadian rhythms and has demonstrated anxiolytic-like effects in animal models. Some researchers have proposed that DSIP functions as a broad neuromodulatory factor rather than a specific sleep peptide, given its wide range of physiological effects including altered pain perception and modulation of opioid receptor activity.

Human studies have used intravenous doses of 25 nmol/kg for sleep research. Animal studies typically use 10-100 nmol/kg via various routes. Intranasal administration has also been explored.

Store lyophilized (freeze-dried) powder at -20°C to 4°C in a dry environment protected from light. Unreconstituted peptide is stable for extended periods when stored properly.

Once reconstituted with bacteriostatic water or an appropriate solvent, store at 2-8°C and use within the timeframe specified on the Certificate of Analysis. Avoid repeated freeze-thaw cycles.

A Certificate of Analysis documenting purity, identity, and recommended storage conditions is included with every order.