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What is DSIP?
DSIP (delta sleep-inducing peptide) is a naturally occurring neuropeptide studied for its reported association with delta-wave sleep and stress regulation. The research literature is mixed, which makes it an active area of investigation.
How DSIP works (research mechanism)
DSIP research examines its role in sleep architecture, stress-hormone modulation, and pain endpoints, though the exact mechanism remains a research question.
Primary research applications
Sleep research
Studied for sleep-quality and delta-wave endpoints in models.
Stress-regulation research
Examined for stress-hormone modulation.
Pain-modulation research
Used in exploratory pain-endpoint designs.
Research dosing reference
Research references commonly cite 100-300 mcg before rest periods, used as-needed. Reference values only.
Reconstitution & handling
DSIP ships as a lyophilized (freeze-dried) powder and must be reconstituted before use in any liquid research model. Allow the vial to reach room temperature, swab the stopper, then add bacteriostatic water slowly down the inside wall of the vial - never spray it directly onto the powder. Swirl gently until dissolved; do not shake, as shaking foams the solution and stresses the peptide. The volume of water you add sets the concentration: a 5 mg vial reconstituted with 2 mL yields 2,500 mcg/mL, so 0.1 mL measures 250 mcg. A correctly reconstituted DSIP solution is clear; discard if it is cloudy or shows particulate.
Storage & stability
Store un-reconstituted DSIP vials refrigerated and protected from light for long-term stability; the lyophilized form is robust and tolerates shipping. After reconstitution, refrigerate at 2-8C, keep away from light, and use within the typical research window of roughly two to four weeks. The benzyl alcohol in bacteriostatic water helps inhibit microbial growth across that period. Always label reconstituted vials with the concentration and date.
Common research pairings
Generally studied as a standalone sleep-research peptide.
How DSIP compares
DSIP is studied specifically for sleep and stress endpoints, distinct from the hormone and cognitive peptides.
Safety & research considerations
A research chemical not approved for human use; the literature reports mixed effects. For laboratory research only.
DSIP research reference data
The figures below are reference values compiled from the research literature for laboratory study design only. They are not instructions for any living subject. See the full DSIP research reference for complete detail and citations.
Half-life and exposure. Short acting
Pharmacokinetics (research reference). Human pharmacokinetics are not standardized. Treat exposure as short acting unless compound-specific data or formal formulation labeling indicates otherwise.
DSIP dose-reference table
| Reference dose | Units (U-100 syringe) |
|---|---|
| 100 mcg | 4 units |
| 250 mcg | 10 units |
| 500 mcg | 20 units |
Reconstitution and concentration by vial size
| Vial | Reconstitute with | Concentration |
|---|---|---|
| 5 mg | 2 mL BAC Water | 0.025 mg/unit |
Research timing. Evening or bedtime research timing is typical; avoid first exposure before an important sleep/work cycle.
Dose-escalation reference. Start low because sedation, stimulation, or lack of response can be individualized.
Monitoring in research models. Monitor vivid dreams, morning grogginess, paradoxical stimulation, headache, or sleep disruption.
Reassessment cadence. Sleep-focused protocols should be reassessed after 1-3 weeks. Continue only if sleep quality improves without next-day impairment or paradoxical stimulation.
Stacking notes (research). Pairs cautiously with sleep protocols; avoid combining with multiple sedating or neuroactive agents initially.
Sourcing, purity & Certificate of Analysis
Every lot of DSIP sold by Peptides Factory Direct is third-party tested to a 99%+ purity target, with identity confirmed by mass spectrometry and purity quantified by HPLC. A Certificate of Analysis (COA) documenting these results is available on request and ties each vial to a tracked lot. Material ships nationwide to all 50 US states with cold-chain handling where appropriate and fast domestic dispatch. This documentation is what separates research-grade DSIP from unverified material - quality is established before the vial ever reaches your lab.
How to order DSIP for research
DSIP can be ordered through the Peptides Factory Direct research portal as a one-time purchase or on a recurring research schedule (every 2 weeks, monthly, every 2 months, or every 3 months). Checkout requires confirming you are 21 or older, purchasing for laboratory research only, and that the product is not for human or animal consumption. Bulk and standing-order pricing is available - note it in your order. Open the order portal to view current research sizes and pricing.
Frequently asked questions
What is DSIP researched for?
Sleep architecture, stress regulation, and pain endpoints - with a mixed literature. Research use only.
What sizes are available?
5 mg and 10 mg vials, third-party tested, COA on request.
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External references: Peptides (Wikipedia) · U.S. Food and Drug Administration