DSIP
D-S-I-P
A naturally occurring brain peptide that promotes deep delta-wave sleep — the most restorative phase of the sleep cycle.
Also known as: Delta Sleep-Inducing Peptide
Last reviewed: April 2026
What It Does
DSIP was discovered in 1977 in the blood of rabbits during deep sleep. It promotes delta-wave sleep — the deepest, most restorative sleep phase associated with growth hormone release, tissue repair, and memory consolidation. Unlike sedatives, it works with your natural sleep architecture.
Why People Take It
How It's Administered
Subcutaneous Injection
Injection 1–2 hours before bed
Frequency
Nightly or as needed
Pain Level
●○○ Minimal
Self-Administered
Yes — at home
Typical Range
100mcg – 300mcg
Nasal
Nasal spray before bed
Frequency
Nightly
Pain Level
○○○ None
Self-Administered
Yes — at home
Typical Range
100mcg – 250mcg
What To Expect
Night 1
Improved sleep onset and depth for some users.
Week 1–2
More consistent deep sleep. More vivid dreams.
Month 1+
Stabilized sleep patterns.
Side Effects
Overall: Mild
Uncommon (0.1–1%)
Morning grogginess
Possible if dose too high.
Headache
Usually mild.
Who Should NOT Take This
• Pregnancy
• Very limited human data
Drug Interactions
• Sedatives/hypnotics — may enhance effects
• Alcohol — additive sedation
Pregnancy: Not studied. Avoid during pregnancy.
Clinical Details
Compare With Similar Peptides
DSIP promotes deep sleep specifically. Melatonin signals sleep timing. Progesterone enhances sleep via GABA. Different mechanisms that could theoretically complement.
Melatonin
The hormone your brain makes when it gets dark — supplementing it helps reset your sleep-wake cycle.
Progesterone
A natural hormone that supports sleep, mood, and hormonal balance — especially important during perimenopause and menopause.
Frequently Asked Questions
This compound is in early research stages. We do not currently offer it.
Looking for something similar? See what we offer for Sleep.
This compound is in early research stages. It has not been FDA-approved and may not be available through compounding pharmacies. The information below is for educational purposes only. Do not attempt to self-administer research compounds.