DSIP / Delta Sleep Inducing Peptide
Also known as: DSIP · Delta Sleep Inducing Peptide · Delta sleep peptide
DSIP promotes delta-wave (slow-wave) sleep by modulating hypothalamic activity and reducing corticotropin-releasing factor (CRF) secretion. It decreases somatostatin secretion, which leads to increased GH pulsatility during sleep. DSIP modulates glutamate and opioid receptors, and reduces ACTH, LH, and cortisol secretion....
What It Is
DSIP promotes delta-wave (slow-wave) sleep by modulating hypothalamic activity and reducing corticotropin-releasing factor (CRF) secretion. It decreases somatostatin secretion, which leads to increased GH pulsatility during sleep. DSIP modulates glutamate and opioid receptors, and reduces ACTH, LH, and cortisol secretion. It acts as a stress-limiting peptide by downregulating the hypothalamic-pituitary-adrenal (HPA) axis response to stress. It also has antioxidant and cardioprotective properties. It normalizes sleep architecture by increasing stage 3-4 NREM sleep.
Supplies Needed
Reconstitution solvent
Subcutaneous injection
Sterilization
Storage
Store at -20C for up to 2 years. Protect from light.
Refrigerate at 2-8C; use within 30 days.
This information is provided for educational and research purposes only. Not approved for human consumption by the FDA or any regulatory body. Always consult a qualified medical professional.
Dosing Protocols
Timing: 30-60 minutes before bed. Start low to assess sensitivity; profound drowsiness may occur - do not drive after dosing
↓ Apply these values to the reconstitution calculatorTiming: 30 minutes before bed. Cycle on/off to prevent tolerance; combine with good sleep hygiene
↓ Apply these values to the reconstitution calculatorTiming: 30 minutes before bed. Higher doses for severe insomnia or sleep architecture disruption; monitor cortisol if using long-term
↓ Apply these values to the reconstitution calculatorWeekly Timeline
| Week | Expected Effects |
|---|---|
| Week 1 | Faster sleep onset; deeper sleep; vivid dreams; reduced nighttime cortisol |
| Week 2 | Normalized sleep architecture; improved morning recovery; reduced sleep latency |
| Week 4 | Sustained improvement in sleep quality; improved daytime energy from better nighttime recovery |
Reconstitution Calculator
1 unit on U-100 syringe = 0.01 mL · Always label your vial after reconstitution
Injection Technique & Reconstitution
- Remove flip-top cap from the vial
- Swab rubber stopper with alcohol swab
- Draw 2 mL bacteriostatic water into syringe
- Inject slowly down the vial wall
- Gently swirl until dissolved
- Label with date; refrigerate at 2-8C
Use our free dosing calculator to get the exact syringe units for your vial size and dose.
Mechanism of Action
DSIP promotes delta-wave (slow-wave) sleep by modulating hypothalamic activity and reducing corticotropin-releasing factor (CRF) secretion. It decreases somatostatin secretion, which leads to increased GH pulsatility during sleep. DSIP modulates glutamate and opioid receptors, and reduces ACTH, LH, and cortisol secretion. It acts as a stress-limiting peptide by downregulating the hypothalamic-pituitary-adrenal (HPA) axis response to stress. It also has antioxidant and cardioprotective properties. It normalizes sleep architecture by increasing stage 3-4 NREM sleep.
Key Research Papers
Comprehensive review of DSIP structure, mechanisms, and sleep-promoting properties including EEG evidence of delta wave induction.
View on PubMed →Stacks Well With
Comprehensive sleep and stress management - Selank reduces daytime anxiety while DSIP promotes deep sleep at night.
Synergistic nocturnal GH optimization - DSIP enhances delta-wave sleep (during which GH is naturally released) while Ipamorelin stimulates additional GH pulsatility at bedtime.
Frequently Asked Questions
DSIP promotes delta-wave sleep, reduces sleep latency, and normalizes sleep architecture. It also reduces cortisol and stress hormones, making it useful for insomnia, jet lag, and sleep disruption from shift work.
No - DSIP is not habit-forming or addictive. Unlike benzodiazepines or z-drugs, it works via neuromodulatory mechanisms that do not cause receptor downregulation or dependence.
Legal Status by Region
This information is provided for educational and research purposes only. Not approved for human consumption by the FDA or any regulatory body. Always consult a qualified medical professional.