DSIP — Vendor Pricing & Purity Guide
Research Overview
DSIP (Delta Sleep Inducing Peptide) is a naturally occurring nonapeptide (9 amino acids) first isolated from rabbit brain in 1977 by Swiss researchers. As its name suggests, it was identified based on its ability to induce delta wave sleep (deep sleep, stage 3/4 NREM sleep) when injected into the cerebral ventricles of recipient rabbits. It is one of the earliest neuropeptides characterized for its effects on sleep architecture.
DSIP's mechanism of action extends well beyond sleep. It has demonstrated stress-modulating properties, analgesic effects, and influence on endocrine function including modulation of ACTH, cortisol, and LH secretion. It appears to act as a "sleep modulator" rather than a sedative — normalizing disrupted sleep patterns rather than directly inducing unconsciousness. This distinction is important: DSIP doesn't force sleep but rather improves sleep quality and architecture.
Research on DSIP has been somewhat complicated by the peptide's unusual pharmacology. It can cross the blood-brain barrier, has a relatively long biological half-life for a small peptide, and shows stress-dependent effects (more pronounced in stressed vs relaxed subjects). These properties make it interesting for research on stress-related sleep disorders.
Key Research Findings
- •Increased delta wave (deep) sleep duration and reduced sleep latency in human EEG studies (Graf & Kastin, 1984)
- •Normalized disrupted sleep patterns in insomnia patients without causing daytime sedation
- •Modulated cortisol and ACTH secretion, suggesting stress-axis regulation beyond pure sleep effects
- •Demonstrated analgesic properties in both acute and chronic pain models
- •Crossed the blood-brain barrier via a saturable transport mechanism
- •Showed greater sleep-promoting effects in stressed subjects vs relaxed controls, suggesting stress-dependent modulation
Research Dosage Protocols
DSIP is supplied as lyophilized powder reconstituted with bacteriostatic water. It has been administered via intravenous, subcutaneous, and intranasal routes in published research.
Published human studies used doses of 25-30 nmol/kg body weight (approximately 100-250 mcg for an average adult). Administration is typically in the evening, 30-60 minutes before the desired sleep period.
DSIP is sometimes studied alongside other sleep-related compounds such as Epitalon (which also modulates melatonin) and Selank (which has anxiolytic properties). It is distinct from sedatives and hypnotics in that it modulates sleep architecture rather than inducing sedation.
For research reference only. Not medical advice. Not for human consumption.
Price Comparison (16 products from 15 vendors)
| Vendor | Price | Stock |
|---|---|---|
| Particle Peptides | $34.99 $3.50/mg 10mg lyophilized | In Stock |
| Triumphant Labs | $48.00 $4.80/mg 10mg | In Stock |
| Paradigm Peptides | $24.99 $5.00/mg 5mg lyophilized | In Stock |
| Peptide Crafters | $30.00 $6.00/mg 5mg lyophilized | Out |
| Simple Peptide | $35.00 $7.00/mg 5mg lyophilized | In Stock |
| Polaris Peptides | $40.00 $8.00/mg 5mg lyophilized | In Stock |
| Core Peptides | $41.00 $8.20/mg 5mg vial | In Stock |
| Biotech Peptides | $44.00 $8.80/mg 5mg vial | In Stock |
| Skye Peptides | $49.00 $9.80/mg 5mg lyophilized | In Stock |
| Peptide Sciences | $50.00 $10.00/mg 5mg lyophilized | In Stock |
| BioLongevity Labs | $55.97 $11.19/mg 5mg vial | In Stock |
| Swiss Chems | $24.95 $12.47/mg 2mg vial | In Stock |
| Peptide Partners | $75.00 $15.00/mg 5mg | In Stock |
| Triumphant Labs | $408.00 $40.80/mg 10mg | In Stock |
| Limitless Biotech | $60.99 spray | Out |
| Pure Rawz | $86.08 vial | In Stock |
Frequently Asked Questions
What is DSIP?
DSIP (Delta Sleep Inducing Peptide) is a naturally occurring 9-amino-acid peptide that promotes deep (delta wave) sleep. It was first isolated from rabbit brain in 1977 and works by modulating sleep architecture rather than causing sedation.
How is DSIP different from sleeping pills?
DSIP normalizes sleep patterns and increases deep sleep phases without sedation, cognitive impairment, or dependence risk. Traditional sleeping pills (benzodiazepines, Z-drugs) induce sedation and can suppress deep sleep. DSIP improves sleep quality; sedatives just make you unconscious.
Where can I buy DSIP for research?
DSIP is available from research peptide vendors. Compare pricing in the table above.