DSIP (Delta Sleep-Inducing Peptide)
A brain peptide that helps you get more deep sleep (the restorative delta-wave kind). It normalizes disrupted sleep patterns and reduces stress, and unlike many sleep aids, you won't feel groggy the next morning.
What to Expect
Week 1–2
Improved sleep onset and increased delta wave sleep within the first few nights. Reduced time to fall asleep. More restorative, deeper sleep cycles.
Week 3–6
Normalized sleep architecture. Reduced stress response and cortisol levels. Improved next-day energy and cognitive performance from better sleep quality.
Week 8+
Sustained sleep improvements. Stress resilience improved via HPA axis normalization. Some users report reduced chronic pain perception.
Common Side Effects
Scientific Overview
Delta Sleep-Inducing Peptide is a nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) originally isolated from cerebral venous blood during electrically induced sleep. DSIP modulates sleep architecture by increasing delta wave (Stage III/IV) activity without suppressing REM sleep. It acts through modulation of serotonergic and GABAergic systems and has demonstrated stress-protective effects via normalization of the hypothalamic-pituitary-adrenal axis. DSIP also exhibits opiate antagonist properties and has been investigated for withdrawal symptom management.
Dosing
100-200 mcg subq or nasal spray about 30 minutes before bed. Use 5 days on, 2 days off.
Practical Guide
Reconstitution
Mix 5mg vial with 2mL BAC water. Typical dose is 100-300mcg.
Storage
Refrigerate after reconstitution. Use within 21 days. Fragile peptide — handle gently.
Injection Sites
Subcutaneous with insulin syringe. Very small injection volume. Some administer intranasally.
Timing
Inject 30-60 minutes before desired sleep time. Do not use during daytime.
Food
No food interactions. Avoid alcohol, which disrupts sleep architecture.
Benefit Profile
Medical Considerations
Contraindications
- ✕Pregnancy/nursing
- ✕Severe hypotension
- ✕Respiratory depression conditions
Drug Interactions
Recommended Monitoring
- →Blood pressure monitoring
- →Sleep quality assessment
This information is for educational purposes only. Always consult a qualified healthcare provider before starting any peptide protocol.
Published Research
Delta sleep-inducing peptide alters bispectral index, the electroencephalogram and heart rate variability when used as an adjunct to isoflurane anaesthesia.
Delta-sleep-inducing peptide does not affect CRH and meal-induced ACTH and cortisol secretion.
Effects of delta sleep-inducing peptide on sleep of chronic insomniac patients. A double-blind study.
Study of delta sleep-inducing peptide efficacy in improving sleep on short-term administration to chronic insomniacs.
DSIP in insomnia.
The influence of synthetic DSIP (delta-sleep-inducing-peptide) on disturbed human sleep.
Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions.
Delta sleep-inducing peptide and glucocorticoid-induced leucine zipper: potential links between circadian mechanisms and obesity?
[Endogenous anticonvulsants: neuropeptide Y and delta sleep inducing peptide].
Delta sleep-inducing peptide (DSIP): a still unresolved riddle.