Sleep & Recovery

DSIP

Also known as: Delta Sleep-Inducing Peptide

The most researched sleep peptide for deep, restorative sleep.

Half-Life
~30 minutes (but sleep effects last the full night)
Administration
Subcutaneous injection
Category
Sleep & Recovery
Citations
1 studies

What is DSIP?

DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first isolated from rabbit brain in 1977. It is one of the most researched sleep peptides and has been shown to promote deep (delta wave) sleep, reduce stress hormones, and have analgesic and anti-oxidant properties. It is used by researchers for sleep optimization and stress reduction.

Mechanism of Action

DSIP modulates delta wave (slow-wave) sleep by acting on multiple neurotransmitter systems including GABA, serotonin, and opioid receptors. It reduces CRH (corticotropin-releasing hormone) and cortisol, normalizes circadian rhythms, and has direct effects on the hypothalamus-pituitary-adrenal (HPA) axis.

DSIP Dosing Protocol

100–200 mcg subcutaneous injection 30–60 minutes before bed. Some protocols use 200–400 mcg. Cycle: 5–10 days on, 5 days off. Can be used as needed for sleep disruption.

Administration Routes
Subcutaneous injectionIntranasal
Half-Life
~30 minutes (but sleep effects last the full night)

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DSIP Benefits

Improved deep (delta wave) sleep
Reduced cortisol and stress hormones
Analgesic effects
Antioxidant properties
Circadian rhythm normalization
Reduced insomnia
Improved sleep quality in shift workers

Side Effect Profile

Extremely well-tolerated. Occasional mild dizziness. No addiction or tolerance reported.

DSIP Stacking Guide

DSIP works synergistically with these compounds. Click any to learn more, or ask PepBot to build you a complete stack.

Research & Citations

1
Delta sleep-inducing peptide: a review of its effects on sleep and other physiological functions
Peptides · 1995

Frequently Asked Questions about DSIP

Is DSIP better than melatonin for sleep?
They work differently. Melatonin signals sleep timing. DSIP specifically promotes deep (delta wave) sleep — the most restorative phase. For people who sleep but don't feel rested, DSIP is often more effective. For difficulty falling asleep, melatonin is more appropriate. Many researchers use both.

Still have questions about DSIP?

PepBot has encyclopedic knowledge of DSIP — dosing, stacking, interactions, latest research, and personalized protocols. Ask anything.