Overview
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first isolated from rabbit brain in 1977. It is named for its ability to induce delta-wave (deep) sleep in animal models. Beyond sleep, it has demonstrated effects on stress tolerance, pain modulation, and endocrine regulation. It is used in the biohacking community for improving sleep architecture and recovery.
Mechanism of action
DSIP modulates multiple neurotransmitter systems including GABAergic, glutamatergic, and serotonergic pathways. It promotes the release of luteinizing hormone (LH) while limiting somatostatin secretion, and modulates corticotropin activity, contributing to stress reduction. It appears to act as a sleep-promoting substance by enhancing slow-wave (delta) sleep without the sedation or dependency risks of benzodiazepines or Z-drugs.
Dosing protocols
| Purpose | Route | Dosage | Frequency | Notes |
|---|---|---|---|---|
| sleep improvement | subcutaneous | 100–300 mcg | daily before bed | Inject 30-60 minutes before desired sleep time. Cycles of 2-4 weeks. Some users report best results with intermittent use. |
Dosing information is for educational purposes only. Consult a qualified healthcare professional before using any peptide.
Research summary
Initial studies by Schoenenberger & Monnier (1977) demonstrated delta-wave sleep induction in rabbits. Subsequent human studies showed improvements in sleep quality, reduced sleep latency, and increased time in deep sleep stages. Studies in chronic insomnia patients showed normalized sleep patterns. Also shown to reduce alcohol and opioid withdrawal symptoms in clinical observations. Research is limited but promising; no large-scale controlled trials in Western literature.
Side effects
Side effects vary by individual. This is not an exhaustive list. Report unusual symptoms to a healthcare professional.
Common stacks
Peptides commonly paired with DSIP for synergistic effects.
Legal status
Not FDA-approved. Available as a research peptide. Not scheduled or banned. Limited regulatory attention due to niche use.
Where to get it
Verified directory — coming soon
PeptaHub is building a verified supplier directory with third-party testing data, compliance status, and reader ratings.