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For research and educational purposes only. Not intended for human consumption.

DSIP

Limited Research
Updated Dec 2025

Delta Sleep-Inducing Peptide | Sleep & Stress Modulator

InjectableNasal
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100-300mcg
1x daily
Injectable
Subcutaneous: abdomen
5-10 days
Typical duration
2-8°C
Refrigerated

Overview

What is DSIP?

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide discovered in 1974 in rabbit brain. Originally isolated for its sleep-promoting properties, DSIP has diverse neuromodulatory effects including stress reduction, pain modulation, and endocrine regulation.

Key Benefits

Enhanced sleep quality through slow-wave sleep promotion, stress reduction via cortisol modulation, potential pain relief, and mood stabilization without traditional sedative effects.

Mechanism of Action

Modulates multiple neurotransmitter systems including GABA enhancement, NMDA receptor interaction, and endogenous opioid system modulation. Also regulates hypothalamic-pituitary-adrenal axis.

Molecular Information

848.8 Da
Weight
9
amino acids
Nonapeptide
Type
Amino Acid Sequence:
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
* Naturally occurring peptide first isolated from rabbit brain

Pharmacokinetics

Peak
30 min
Half-life
8 min
Cleared
~39 min
100%50%0%0h6h12h18h24h
Peak
Half-life
Cleared
Graf et al.

Research Indications

Deep Sleep Enhancement

Promotes delta wave sleep, the most restorative sleep phase for physical recovery.

Sleep Efficiency

Reduces sleep latency and nocturnal awakenings without morning grogginess.

Natural Sleep Architecture

Supports natural sleep cycles rather than forcing sedation.

Research Protocols

Disclaimer: DSIP has limited human clinical data. These protocols are based on available research and anecdotal reports. Consult a healthcare provider before use.

GoalDoseFrequencyRoute
Sleep Enhancement100-200mcgOnce nightlySubcutaneous
Chronic Pain250-300mcgDailyIV or SubQ
Stress Management150mcgEveningSubcutaneous
Withdrawal Support200-300mcgTwice dailyIV preferred
Athletic Recovery100-150mcgPost-trainingSubcutaneous

Timing: Best taken 30-60 minutes before intended bedtime. Some prefer earlier evening dosing (2-3 hours before bed) for gradual onset.

Peptide Interactions

How to Reconstitute

Important: Always use bacteriostatic water (BAC). Sterile technique is essential.

1

Clean vial tops with alcohol swab and let dry completely

2

For 1mg vial, add 1ml BAC water (creates 1mg/ml or 1000mcg/ml)

3

Inject water slowly down vial side to prevent foaming

4

Gently roll between palms - do not shake

5

Solution should be clear and colorless

6

For 100mcg dose, draw 0.1ml (10 units on insulin syringe)

7

Store reconstituted peptide in refrigerator immediately

Dosing Calculator

Calculate your injection volume with visual dosing guide

FINAL CONCENTRATION
2.50mg/mL
Each milliliter contains 2.50 mg of peptide
VISUAL REFERENCE (RESEARCH USE ONLY)

To obtain 250 mcg from this solution:

Draw 0.10 mL=10 units

(1 mL = 100 units on any insulin syringe)

0102030405060708090100
00.10.20.30.40.50.60.70.80.91.0
0.10 mL
10 units

Draw to this mark for 250 mcg

This calculator is for research purposes only. Always verify calculations and consult protocols.

Quality Indicators

White lyophilized powder

Pure DSIP appears as white to off-white powder before reconstitution.

Clear solution when mixed

Properly reconstituted DSIP should be completely clear and colorless.

Short stability period

DSIP has limited stability - use reconstituted solution within 14 days.

Protect from degradation

DSIP degrades quickly - minimize light exposure and temperature fluctuations.

Yellow or cloudy solution

Indicates degradation or contamination - do not use.

What to Expect

  • First dose: Noticeable sleep pressure and easier sleep onset
  • Night 1-3: Deeper sleep, fewer awakenings, vivid dreams possible
  • Day 2-5: Improved morning refreshment, stable daytime energy
  • Day 5-10: Cumulative stress reduction, mood improvements
  • Post-cycle: Benefits may persist 1-2 weeks after stopping

Side Effects & Safety

Side Effects

  • Generally well-tolerated with minimal side effects
  • Some users report mild drowsiness or dizziness initially
  • Occasional reports of headaches in sensitive individuals
  • No tolerance or dependence reported in studies
  • Avoid driving until effects are known
  • Not recommended during pregnancy or breastfeeding

When to Stop

  • Excessive drowsiness
  • Persistent dizziness
  • Severe headaches
  • Any adverse reactions
  • As directed by healthcare provider

References

3 Studies

Stroke Recovery in Rats (2021)

Rats | 120 μg/kg nasal | 7 days | Enhanced motor recovery

Intranasal DSIP administration before and after induced stroke accelerated motor function recovery.

Chronic Insomnia Study (1991)

Human | 15-30 nmol | 6 consecutive nights | Improved sleep efficiency

Double-blind crossover study showed DSIP improved objective sleep quality with higher sleep efficiency and shorter sleep latency.

Endocrine Modulation Research (1988)

Human/Animal | Various doses | Multiple studies | Hormone regulation

Multiple studies demonstrated DSIP modulates ACTH, cortisol, and growth hormone release.

Quick Start Guide

Typical Dose
100-200mcg per injection
How Often
Once daily, 30-60 minutes before bed
Where to Inject
Subcutaneous: abdomen
Timing
Evening administration 30-60 minutes before intended sleep
Effects Timeline
Sleep pressure: 30-60 min, Deep sleep: first night, Full benefits: 3-5 days
Storage
Refrigerate at 2-8°C, protect from light, use within 14 days
Cycle Length
5-10 consecutive days
Break Between
2-4 weeks between cycles

Research Disclaimer

DSIP is sold for laboratory research purposes only and is not intended for human or animal consumption. The information provided on this page is compiled from published research, veterinary studies, and anecdotal reports for educational purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations. Any research involving DSIP must comply with all applicable local, state, and federal regulations. BioInfinity Lab makes no claims regarding the safety or efficacy of DSIP for any purpose. Consult qualified professionals for any research applications.