DSIP is a small, naturally occurring peptide made up of just 9 amino acids.
Produced naturally in the brain (hypothalamus) and found in human blood and plasma.
First discovered in 1977 by Swiss researchers studying deep sleep in rabbits.
Named after its ability to trigger delta-wave brain activity — the brain pattern associated with the deepest, most restorative sleep.
Molecular Profile.
Formula: C₈₇H₁₃₅N₂₃O₁₈
Molecular Weight: 1,500.0 Da.
Purity: 99%+
Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu.
What Makes It Unique?
One of the very few peptides that can cross the blood-brain barrier naturally.
Unlike sleeping pills, it doesn't force sleep — it supports the brain's own natural sleep process.
Works across multiple systems at once: sleep, stress hormones, brain health, and recovery.
Also found in breast milk, suggesting a possible natural role in infant sleep.
What Research Shows.
Sleep
Promotes deeper, more restorative sleep by increasing delta-wave (slow-wave) brain activity.
Reduces nighttime awakenings and improves overall sleep quality.
Some studies report up to a 30% increase in deep sleep activity.
Stress & Cortisol
Helps regulate the body's stress response (HPA axis).
Research has shown cortisol reductions of 20–40% following administration.
Helps restore the normal daily cortisol rhythm — which is often disrupted by chronic stress and poor sleep.
Hormones
Linked to increased growth hormone (GH) release during sleep — important for tissue repair and recovery.
May reduce ACTH (the hormone that triggers cortisol release).
Also studied for potential effects on luteinizing hormone (LH).
Brain & Neuroprotection
Animal studies show reduced brain cell damage and faster motor recovery after stroke.
May have potential relevance in neurodegenerative conditions like Alzheimer's and Parkinson's (early-stage research).
Raises the threshold for seizure activity — studied as a potential anticonvulsant.
Other Notable Findings
Demonstrated antioxidant effects — activates the body's natural defences against cellular stress.
May reduce inflammation-related swelling (anti-edema properties).
Early research hints at possible pain-modulating and immune-supportive roles.
Why It Stands Out Among Research Peptides.
Targets the root cause of poor sleep (hormonal and neurochemical imbalance) rather than just masking symptoms.
Multi-system reach: sleep + stress + hormones + brain protection in one compound.
Non-sedating — works with the body, not against it.
Rare ability to cross the blood-brain barrier makes it highly relevant for CNS research.
Important Note.
All information is for research and educational purposes only. DSIP is a research compound supplied by AminoPure Canada strictly for in-vitro laboratory use. Not for human or veterinary use.
Helps regulate the body's stress response (HPA axis).
Research has shown cortisol reductions of 20–40% following administration.
Helps restore the normal daily cortisol rhythm — which is often disrupted by chronic stress and poor sleep.
Hormones
Linked to increased growth hormone (GH) release during sleep — important for tissue repair and recovery.
May reduce ACTH (the hormone that triggers cortisol release).
Also studied for potential effects on luteinizing hormone (LH).
Brain & Neuroprotection
Animal studies show reduced brain cell damage and faster motor recovery after stroke.
May have potential relevance in neurodegenerative conditions like Alzheimer's and Parkinson's (early-stage research).
Raises the threshold for seizure activity — studied as a potential anticonvulsant.
Other Notable Findings
Demonstrated antioxidant effects — activates the body's natural defences against cellular stress.
May reduce inflammation-related swelling (anti-edema properties).
Early research hints at possible pain-modulating and immune-supportive roles.
Why It Stands Out Among Research Peptides.
Targets the root cause of poor sleep (hormonal and neurochemical imbalance) rather than just masking symptoms
