What Is DSIP?

Also known as: Delta Sleep-Inducing Peptide

DSIP (Delta Sleep-Inducing Peptide) is a nonapeptide isolated in 1974 from the blood of sleeping rabbits — one of neuroscience's more curious discoveries. It appeared to transfer slow-wave 'delta' sleep pressure between animals, hence the name.

Fifty years later it remains half-mystery: no receptor has ever been conclusively identified, and human results are inconsistent. Community use targets deep-sleep quality and stress-axis modulation, with reports ranging from transformative to nothing.

What is DSIP studied for?

Side effects & safety

Mild by report — occasional grogginess or, paradoxically, disrupted sleep in some users. The dominant 'risk' is simply non-response.

Legal & approval status

Research chemical; no approvals anywhere.

Typical dosing at a glance

Commonly reported protocols use 100 mcg–500 mcg, before bed, often cycled, via subcutaneous injection. For the mixing math — how much bacteriostatic water, exact syringe units, doses per vial — see the DSIP reconstitution calculator →

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Educational overview based on published research and commonly reported community protocols — not medical advice, and not an endorsement of any compound. Consult a licensed healthcare provider.