DSIP
Also known as: Delta Sleep Inducing Peptide
A naturally occurring nonapeptide that promotes delta wave (deep) sleep, modulates stress hormones, and normalizes disrupted sleep patterns.
Overview
DSIP (Delta Sleep Inducing Peptide) is a naturally occurring nonapeptide (nine amino acids) first isolated from rabbit brain tissue in 1977. It was named for its ability to induce delta wave activity in EEG recordings — delta waves are the hallmark of deep, restorative slow-wave sleep. DSIP is found naturally in the human brain and blood, and its levels follow a circadian rhythm, peaking during sleep. Beyond sleep promotion, DSIP has demonstrated a remarkably diverse range of biological activities.
It modulates corticotropin and cortisol levels (helping normalize the stress response), has analgesic properties, shows antioxidant effects, and can normalize blood pressure. DSIP has also been studied for its potential in treating alcohol and opioid withdrawal, as it appears to modulate endorphin systems and reduce withdrawal symptoms. The peptide's mechanism is complex and not fully understood — it appears to work through multiple pathways rather than a single receptor, which may explain its broad range of effects. For those focused on longevity, DSIP is primarily valued for its ability to improve sleep quality without the grogginess or dependency associated with pharmaceutical sleep aids.
Mechanism of Action
Modulates GABAergic and glutamatergic neurotransmission to promote slow-wave sleep. Reduces cortisol and ACTH levels. Influences serotonin and dopamine metabolism. Has direct antioxidant properties. Modulates endorphin systems. Exact receptor binding profile remains under investigation.
Key Benefits
Potential Side Effects
Common Stacks
This peptide is commonly combined with the following compounds for synergistic effects:
Known Interactions
The following interactions have been documented for DSIP. Always consult a healthcare professional before combining compounds.
Synergistic (2)
Selank's anxiolytic effects complement DSIP's sleep-promoting properties. Selank during the day for calm focus, DSIP at night for deep sleep.
Pinealon supports pineal gland function and melatonin regulation while DSIP directly promotes delta-wave sleep. Complementary sleep optimization.
Scientific References
Quick Reference
Typical Dose
100-300 mcg
Frequency
Once daily, 30-60 minutes before bed
Route
Subcutaneous injection or intranasal
Half-Life
~15-25 minutes (but effects on sleep architecture persist)
Cycle Length
2-4 weeks on, 1-2 weeks off
FDA Status
Not FDA approved; research chemical
Need to calculate dosing?
Use our reconstitution calculator to determine exact syringe measurements.
Open CalculatorThis information is for educational purposes only. Consult a qualified healthcare professional before using any peptide. Dosing information reflects commonly reported protocols and may not be appropriate for everyone.