What is DSIP?
Delta sleep-inducing peptide (DSIP) is a nonapeptide first isolated in 1977 from thalamic perfusate of sleeping rabbits by Monnier et al. that induced slow-wave (delta) sleep when infused. Subsequent research has explored roles in pain modulation, stress response, temperature regulation, and antioxidant effects. Clinical evidence is limited and inconsistent; mechanism remains poorly characterized. Research only.
Mechanism of Action
Proposed modulation of delta-wave sleep via thalamic and hypothalamic mechanisms; interaction with sigma receptors and opioid pathways; reduction of ACTH and LH secretion; antioxidant properties via lipid peroxidation inhibition
Target: Sigma receptors, hypothalamic-pituitary axis, thalamic sleep centers
Research Indications
Research suggests improvements in memory, focus, and cognitive processing
May protect neurons from oxidative stress and inflammatory damage
Some studies report anxiolytic and mood-stabilizing effects
Research Protocols
These are commonly discussed research protocols — not medical advice. Consult a healthcare provider before use.
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Starting Dose | Low dose | Once daily | Intranasal or Injectable |
| Standard Dose | Standard | Once daily | Intranasal or Injectable |
Peptide & Drug Interactions
Always consult your healthcare provider before combining with other compounds. Use our Interaction Checker for reference.
How to Reconstitute & Inject
Use bacteriostatic (BAC) water only. Avoid saline — may cause precipitation. Refrigerate and use within 28 days.
- 1
Remove DSIP vial from refrigeration and allow to reach room temperature (15–20 minutes)
- 2
Clean vial top with alcohol swab and allow to air dry completely
- 3
Using a sterile syringe, draw the calculated volume of bacteriostatic water (BAC water)
- 4
Inject BAC water slowly down the side of the vial — do not aim directly at the powder
- 5
Gently swirl in circular motions — DO NOT shake vigorously as this degrades the peptide
- 6
Allow 2–3 minutes for full dissolution — solution should be clear and colorless
- 7
Draw calculated dose into an insulin syringe for subcutaneous injection
- 8
Inject into abdomen, thigh, or upper arm. Rotate injection sites to prevent lipodystrophy
- 9
Store reconstituted solution refrigerated (2–8°C) and use within 28 days
What to Expect
Week 1–2
Subtle mood and focus improvements may begin. Sleep quality often improves early.
Week 2–4
Increased mental clarity, word recall, and reduced brain fog reported by many.
Week 4–8
Consistent cognitive improvements. Better stress response and working memory.
Week 8+
Sustained cognitive and neurological benefits. Effects may persist post-cycle.
Side Effects & Safety
- Headache, particularly at initiation
- Mild anxiety or restlessness with some compounds
- Nasal irritation (intranasal administration)
- Sleep disturbance if dosed too close to bedtime
- Rare: Mood changes or emotional lability
FDA Status & Regulatory Info
Delta sleep-inducing peptide (DSIP) is a nonapeptide first isolated in 1977 from thalamic perfusate of sleeping rabbits by Monnier et al. that induced slow-wave (delta) sleep when infused. Subsequent research has explored roles in pain modulation, stress response, temperature regulation, and antioxidant effects. Clinical evidence is limited and inconsistent; mechanism remains poorly characterized. Research only.
Frequently Asked Questions
Research References
External links for education only. We do not control third-party content.
Community-reported data
The information below reflects self-reported experiences from PeptIQ app users. It is not clinical evidence and should not replace professional medical advice.
Community Intelligence
What 49 users report
Positive 3% · Neutral 97% · Negative 0%
Most reported benefits
Most reported side effects
Dose distribution
Median: 200–400 mcg · Most common: 200–400 mcg
Commonly stacked with
How repeat users are trending
Among repeat reporters, 85% said they felt similar to their last entry, 15% more positive, and 0% more negative.
Overall, repeat reporters leaned more positive than their previous entry.
Median gap between entries: 62 days · Based on 33 repeat reporters
Share Your Experience
Rate DSIP in the PeptIQ app and help the community make informed decisions.
Research purposes only
This page is for educational reference. It is not medical or legal advice. Consult the FDA and a licensed healthcare professional for current regulations and individualized guidance.