Quickstart Highlights
Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide (9 amino acids) first isolated from rabbit brain tissue and studied for its effects on sleep architecture and stress modulation[1][2]. Research indicates DSIP may promote delta-wave (slow-wave) sleep, modulate cortisol and ACTH levels, and exhibit stress-protective properties[3][4]. This educational protocol presents a once-daily subcutaneous approach using a practical dilution for clear insulin-syringe measurements.
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Reconstitute: Add 3.0 mL bacteriostatic water → ~1.67 mg/mL concentration.
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Typical daily range: 100–300 mcg once daily (gradual titration); advanced up to 500 mcg.
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Easy measuring: At 1.67 mg/mL, 1 unit = 0.01 mL ≈ 16.7 mcg on a U-100 insulin syringe.
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Storage: Lyophilized: freeze at −20 °C (−4 °F); after reconstitution, refrigerate at 2–8 °C (35.6–46.4 °F); avoid freeze–thaw cycles.
Dosing & Reconstitution Guide
| Phase |
Dose |
Units (per injection) |
| Week 1 |
100 mcg |
6 units (0.06 mL) |
| Week 2 |
150 mcg |
9 units (0.09 mL) |
| Week 3 |
200 mcg |
12 units (0.12 mL) |
| Weeks 4–8 |
250–300 mcg |
15–18 units (0.15–0.18 mL) |
Frequency: Inject once daily subcutaneously, typically in the evening before bedtime[5][6]. For ≤10-unit (≤0.10 mL) administrations (Weeks 1–2), consider 30- or 50-unit insulin syringes for improved readability.
Advanced / Extended Approach
| PHASE |
Dose |
Units (per injection) |
| Week 5 |
350–400 mcg |
21–24 units (0.21–0.24 mL) |
| Weeks 6–8+ |
400–500 mcg |
24–30 units (0.24–0.30 mL) |
Note: Advanced dosing (beyond 300 mcg) is based on anecdotal experience; formal human studies have primarily used doses up to ~300 mcg daily[7]. Use the minimum effective dose and increase only if needed.
Reconstitution Steps
- Draw 3.0 mL bacteriostatic water with a sterile syringe.
- Inject slowly down the vial wall; avoid foaming.
- Gently swirl/roll until dissolved (do not shake).
- Label and refrigerate at 2–8 °C (35.6–46.4 °F), protected from light.
Supplies Needed
Plan based on an 8–12 week daily protocol with gradual titration.
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Peptide Vials (DSIP, 5 mg each):
- 8 weeks at ~200 mcg/day avg ≈ 2–3 vials
- 12 weeks at ~200 mcg/day avg ≈ 3–4 vials
- 12 weeks at ~300 mcg/day avg ≈ 5–6 vial
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Insulin Syringes (U-100):
- Per week: 7 syringes (1/day)
- 8 weeks: 56 syringes
- 12 weeks: 84 syringes
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Bacteriostatic Water (10 mL bottles): Use ~3.0 mL per vial for reconstitution
- 3 vials: 9 mL → 1 × 10 mL bottle
- 5 vials: 15 mL → 2 × 10 mL bottles
- 6 vials: 18 mL → 2 × 10 mL bottles
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Alcohol Swabs: One for the vial stopper + one for the injection site each day.
- Per week: 14 swabs (2/day)
- 8 weeks: 112 swabs → recommend 2 × 100-count boxes
- 12 weeks: 168 swabs → recommend 2 × 100-count boxes
Protocol Overview
Concise summary of the once-daily regimen.
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Goal: Support healthy sleep architecture and stress modulation over time[3][4].
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Schedule: Daily subcutaneous injections for 4–8 weeks (extend to 12 weeks if desired).
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Dose Range: 100–300 mcg daily with gradual titration; advanced up to 500 mcg.
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Reconstitution: 3.0 mL per 5 mg vial (~1.67 mg/mL) for accurate unit measurements.
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Storage: Lyophilized frozen; reconstituted refrigerated; avoid repeated freeze–thaw.
Dosing Protocol
Suggested daily titration approach.
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Start: 100 mcg daily; increase by ~50 mcg every 1–2 weeks as tolerated.
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Target: 250–300 mcg daily by Weeks 4–8.
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Frequency: Once per day (subcutaneous), typically before bedtime.
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Cycle Length: 4–8 weeks; optional extension to 12 weeks with periodic breaks.
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Timing: Evening administration preferred; rotate injection sites.
Storage Instructions
Proper storage preserves peptide quality.
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Lyophilized: Store at −20 °C (−4 °F) in dry, dark conditions; minimize moisture exposure[8].
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Reconstituted: Refrigerate at 2–8 °C (35.6–46.4 °F); use within ~4 weeks and avoid freeze–thaw[9].
- Allow vials to reach room temperature before opening to reduce condensation uptake.
How It Works
DSIP (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) was first characterized in 1977 as a sleep-modulating factor isolated from rabbit brain[1]. Mechanistic studies suggest DSIP may influence sleep by modulating GABAergic transmission and interacting with opioid receptor systems[10]. Research indicates it can increase delta-wave (slow-wave) sleep duration without significantly altering REM sleep architecture[3]. Beyond sleep, DSIP has demonstrated stress-protective and adaptogenic properties in various models, potentially through modulation of the hypothalamic-pituitary-adrenal axis[4][11].
Potential Benefits & Side Effects
Observations from preclinical and clinical literature.
- May promote deeper, more restorative slow-wave sleep and improve subjective sleep quality[3][5].
- Research suggests potential stress-protective and anxiolytic-like effects[4][11].
- Some studies indicate DSIP does not induce pharmacological tolerance with continued use[2].
- Generally well tolerated in human studies; occasional mild injection-site reactions may occur with subcutaneous administration.
- Limited long-term safety data; periodic breaks are recommended as a precaution[6].
References
For laboratory and research use only. Minimum 98% purity. Not intended for human or animal consumption, medical,
diagnostic, therapeutic or veterinary use. These statements have not been evaluated by the MHRA or FDA. This protocol is
provided for educational and research purposes only and is not medical advice. The purchaser accepts full responsibility
for safe handling, storage and lawful use.