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Last reviewed: March 2026Sources: PubMed, FDA, WADA Prohibited List

Evidence graded using the PeptideScholar A-D system

DSIP (Delta Sleep-Inducing Peptide)

DLimited Data

Neuropeptide · 9 amino acids

Not FDA ApprovedWADA Banned

DSIP is a neuropeptide originally isolated from rabbit brain during induced sleep. Research suggests it may modulate sleep patterns, stress responses, and neuroendocrine function.

Mechanism of Action

Acts on multiple neurotransmitter systems including serotonergic, glutamatergic, and GABAergic pathways. May modulate cortisol and ACTH release.

Benefits

  • Promoted slow-wave sleep onset in early human studies
  • Reduced cortisol levels in some reports
  • May normalize disrupted sleep patterns
  • Opioid withdrawal support explored in small studies
Not Medical Advice — Research-Reported Information Only

This content is for informational purposes only and does not constitute medical advice.

DSIP (Delta Sleep-Inducing Peptide) — Dosing in Published Research

Reported Routes: Intravenous, Subcutaneous injection, Intranasal
Early clinical studies used 25-30 nmol/kg IV before sleep. No standardized dosing protocol exists.

The dosing information above is sourced from published research literature and clinical trials. These are not recommendations. Individual responses vary. Always consult a healthcare provider before considering any peptide-based therapy.

Side Effects

  • Very limited safety data
  • Potential morning grogginess
  • Unknown long-term effects
  • Quality control concerns with research products

Considering Peptide Research?

DSIP (Delta Sleep-Inducing Peptide) is not FDA-approved. Always consult a licensed healthcare provider before considering any peptide.

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Research & Evidence

ReviewNeuroscience & Biobehavioral Reviews, 1984

The delta sleep-inducing peptide (DSIP): review of current evidence

DSIP promoted sleep onset and enhanced EEG slow-wave activity in human and animal studies

PMID: 6313933
AnimalPeptides, 1986

DSIP and stress modulation

DSIP normalized stress-elevated corticotropin levels and reduced adrenal hypertrophy in rats

PMID: 2869112

Compare DSIP (Delta Sleep-Inducing Peptide) With

DSIP (Delta Sleep-Inducing Peptide) vs Selank

References

  1. 1. The delta sleep-inducing peptide (DSIP): review of current evidence. Neuroscience & Biobehavioral Reviews, 1984. “DSIP promoted sleep onset and enhanced EEG slow-wave activity in human and animal studies” [PMID: 6313933]
  2. 2. DSIP and stress modulation. Peptides, 1986. “DSIP normalized stress-elevated corticotropin levels and reduced adrenal hypertrophy in rats” [PMID: 2869112]

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Medical Disclaimer

This content is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment recommendations.

Always consult a qualified healthcare provider before starting, stopping, or modifying any treatment. Do not disregard professional medical advice based on information found on this site.

No claims of therapeutic efficacy are made for substances that are not FDA-approved for the discussed indications. Research citations reflect published findings and do not imply endorsement.

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