DSIP — Peptide Protocol Wiki reference
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DSIP: Delta Sleep-Inducing Peptide Guide | Peptide Protocol Wiki Skip to main content 🧬 Peptide Protocol Wiki Peptides Side Effects New Learn Directory Tools Blog News About ⌘K ⌘K 🌱 New to Peptides? Start the 7-step beginner guide Peptides Side Effects New Directory Learn Tools Blog News About DSIP 📋 Overview 🧬 Molecule 🔄 Similar ⚠️ Side Effects 💉 Dosing 🔬 Research 🚨 Risks 👥 Community 📊 Community Data Home Peptides DSIP Sleep & Recovery Brain & Neuroprotection preclinical DSIP Also known as: Delta Sleep-Inducing Peptide, Delta-Sleep-Inducing Peptide, DSIP Nonapeptide Compare with 2 peptide s Research compiled by Peptide Protocol Wiki 📅 Updated February 9, 2026 Citations Verified TL;DR DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood in 1977. It is an amphiphilic peptide with a molecular weight of approximately 849 Da that has been studied for its effects on sleep architecture, stress modulation, pain perception, and neuroendocrine regulation.
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Linked assets (14) · phenotypes (0)
evidence_reference, safety_reference, dosing_reference, mechanism, monitoring_reference, contraindication_reference
Findings (62) · awaiting review (25)
safety · pending
DSIP: Delta Sleep-Inducing Peptide Guide | Peptide Protocol Wiki Skip to main content 🧬 Peptide Protocol Wiki Peptides Side Effects New Learn Directory Tools Blog News About ⌘K ⌘K 🌱 New to Peptides?
dosing · pending
Start the 7-step beginner guide Peptides Side Effects New Directory Learn Tools Blog News About DSIP 📋 Overview 🧬 Molecule 🔄 Similar ⚠️ Side Effects 💉 Dosing 🔬 Research 🚨 Risks 👥 Community 📊 Community Data Home Peptides DSIP Sleep & Recovery Brain & Neuroprotection preclinical DSIP Also known as: Delta Sleep-Inducing Peptide, Delta-Sleep-Inducing Peptide, DSIP Nonapeptide Compare with 2 peptide s Research compiled by Peptide Protocol Wiki 📅 Updated February 9, 2026 Citations Verified TL;DR DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood in 1977.
mechanism · pending
It is an amphiphilic peptide with a molecular weight of approximately 849 Da that has been studied for its effects on sleep architecture, stress modulation, pain perception, and neuroendocrine regulation.
safety · pending
Browse all sleep peptides → Table of Contents 📌 TL;DR • Studied for promotion of delta (slow-wave) sleep in multiple species • Research suggests stress-modulating and adaptogenic properties • Investigated for analgesic and anticonvulsant effects • Generally well-tolerated in limited human studies Community-Reported Side Effects Anecdotal ?
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Neuroendocrine Effects # DSIP modulates the release of several hormones including luteinizing hormone (LH), growth hormone (GH), and adrenocorticotropic hormone (ACTH).
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The peptide has also shown anticonvulsant activity, significantly decreasing the incidence and duration of seizures in rats with metaphit-induced epilepsy.
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These effects suggest broad neuromodulatory activity extending beyond sleep regulation.
dosing · pending
📋 Protocol Quick-Reference Sleep quality improvement and insomnia management 💉 Dosing Amount 100-300 mcg subcutaneous; 25 nmol/kg IV (~1.5 mg for 70 kg person) Frequency Once daily before bed; or every 2-3 days Duration 10-30 days; effects may persist 3-7 months after a 10-day course 💊 Administration Route SC Schedule Once daily before bed; or every 2-3 days Timing Evening, 30-60 minutes before desired sleep onset; some sources suggest 2-3 hours before bed ✓ Rotate injection sites 📅 Cycle Duration 10-30 days; effects may persist 3-7 months after a 10-day course Repeatable Yes Course-based protocol with rest periods Preparation & Storage Diluent: Bacteriostatic water Use within: 24 hours Storage: Store lyophilized powder at -20C protected from light and moisture.
monitoring · pending
⚗️ Suggested Bloodwork ( 5 tests) CBC When: Baseline Why: General health baseline CMP When: Baseline Why: Liver and kidney function Cortisol (morning) When: Baseline Why: DSIP may modulate cortisol and stress hormones Cortisol When: 2 weeks Why: DSIP has been reported to normalize cortisol levels Morning cortisol When: Ongoing Why: DSIP normalizes stress hormones; significant changes warrant monitoring ⚠️ DSIP normalizes stress hormones; significant changes warrant monitoring 💡 Key Considerations → A 10-day course of da
contraindication · pending
ily injections showed the best results in clinical studies → Contraindication: Limited safety data; avoid in pregnancy; use caution with concurrent sedative medications Subscribe to unlock this content Get weekly peptide research summaries, new study alerts, and protocol updates — free.
outcome · pending
Restore access No thanks, continue reading Related Reading Peptide Pinealon neuroprotective bioregulatory tripeptide Peptide Selank anxiolytic nootropic peptide Peptide Dermorphin peptide How DSIP works at the cellular level Overview of DSIP benefits and applications Scientific Details Molecular Formula C35H48N10O15 Molecular Weight 849 Da CAS Number 62568-57-4 Sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu What is DSIP?
mechanism · pending
arked diurnal variation, with concentrations being lower in the mornings and higher in the afternoons, suggesting a role in circadian rhythm regulation.
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Mechanism of Action # The mechanism of action of DSIP remains incompletely understood, which has been described as a still unresolved riddle in the scientific literature.
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Unlike many neuroactive peptides, DSIP does not appear to act through a single identified receptor.
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Instead, its effects appear to be mediated through multiple pathways.
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Sleep Modulation # DSIP has been demonstrated to promote delta-wave sleep in rabbits, mice, rats, cats, and humans.
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The peptide increases the proportion of slow-wave sleep characterized by high-amplitude delta rhythms on electroencephalography (EEG).
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In human studies, DSIP administration has been associated with increased sleep efficiency, shortened sleep latency, and normalization of disturbed sleep patterns.
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The sleep-promoting effects appear to involve modulation of serotonergic and GABAergic neurotransmission.
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Antioxidant and Cytoprotective Effects # Research has identified antioxidant properties of DSIP, including the ability to decrease lipid peroxidation and normalize antioxidant enzyme activities.
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Some studies reported normalization of sleep architecture and improved subjective sleep quality, while others found limited therapeutic benefit compared to placebo.
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Stress and Adaptation # DSIP has been investigated for its stress-modulating properties, including the ability to attenuate the cortisol response to psychological and physical stres
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Substance Withdrawal # Small studies have explored DSIP as an adjunct in the management of opioid and alcohol withdrawal, based on its sleep-promoting and stress-modulating properties.
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Preliminary results have been encouraging but are insufficient to draw firm conclusions about efficacy.
regulatory · pending
Important Considerations # DSIP is not approved for therapeutic use by any major regulatory agency.
mechanism · pending
The peptide's mechanism of action remains incompletely characterized, and its pharmacokinetics following different routes of administration are not well established.
mechanism · pending
The absence of an identified specific receptor, the inconsistency of clinical results across studies, and the limited understanding of its pharmacokinetics represent significant gaps.
dosing · pending
Large-scale, placebo-controlled clinical trials have not been conducted, and the optimal dosing, route of administration, and treatment duration have not been established.
mechanism · pending
Synthetic DSIP reproduced the sleep-inducing properties of natural extract Confirmed nonapeptide sequence Established delta-wave sleep promotion in rabbits Delta sleep-inducing peptide (DSIP): a still unresolved riddle , published in Journal of Neurochemistry (Kastin AJ et al., 2006; PMID: 16539679): Comprehensive review examining the inconsistencies and unresolved questions in DSIP research, including its mechanism of action and clinical relevance.
mechanism · pending
DSIP mechanism remains incompletely understood No specific receptor identified Pleiotropic effects extend beyond sleep modulation Effects of delta sleep-inducing peptide on sleep of chronic insomniac patients.
outcome · pending
A double-blind study , published in Neuropsychobiology (Schneider-Helmert D and Schoenenberger GA, 1983; PMID: 1299794): Double-blind study examining DSIP effects in chronic insomnia patients, finding improvements in sleep efficiency and latency.
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Improvements in subjective sleep quality Some patients showed sustained b
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Two administrations showed improvement of sleep Four administrations led to normalization of sleep structure Effects persisted beyond the treatment period Related Reading # DSIP research studies and evidence DSIP dosing protocols DSIP side effects profile Cortistatin research guide Dermorphin research guide Stay current on DSIP research We summarize new studies, safety updates, and dosing insights — delivered biweekly.
mechanism · pending
For research into sleep mechanisms, cortistatin offers a more tractable pharmacological target.
mechanism · pending
It is an amphiphilic peptide with a molecular weight of approximately 849 Da that has been studied for its effects on sleep architecture, stress modulation, pain perception, and neuroendocrine regulation.
outcome · pending
What are the benefits of DSI
outcome · pending
Research suggests the following potential benefits of DSIP: Studied for promotion of delta (slow-wave) sleep in multiple species.
mechanism · pending
Research suggests stress-modulating and adaptogenic properties.
mechanism · pending
DSIP is primarily studied for: Sleep regulation research, Stress response modulation studies, Neuroendocrine function investigations.
safety · pending
What are the side effects of DSIP?
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