For laboratory research use only — not for human or veterinary consumption.
The Peptide Index
PI-033

DSIP

Nonapeptide

Delta Sleep-Inducing Peptide, a nonapeptide first isolated in connection with sleep regulation. Its effects in humans remain poorly characterized and inconsistent.

Mechanism under study

DSIP was originally associated with the promotion of delta-wave (deep) sleep in animal studies; proposed actions include neuromodulatory and stress-hormone-modulating effects, but the mechanism is not well established.

Research-reported dosing

No established human dosing; the evidence base is limited and mixed. Research-community sources reference doses on the order of 100-250 mcg.

Reconstitution

Based on a standard 5 mg vial: with 2 mL bacteriostatic water = 2,500 mcg/mL (2.5 mg/mL); 1 unit ≈ 25 mcg.

A 200 mcg dose ≈ 8 units (25 mcg per unit).

Open this mix in the calculator →Source research-grade DSIP ↗

Dosing figures describe how this compound appears in the research literature and research-community references. They are not a recommendation for human use.

DSIP FAQ

What is DSIP?

Delta Sleep-Inducing Peptide, a nonapeptide first isolated in connection with sleep regulation. Its effects in humans remain poorly characterized and inconsistent.

What is the half-life of DSIP?

Very short — reported on the order of minutes in early studies.

What is the research-reported dosing for DSIP?

No established human dosing; the evidence base is limited and mixed. Research-community sources reference doses on the order of 100-250 mcg.

How is DSIP reconstituted?

Based on a standard 5 mg vial: with 2 mL bacteriostatic water = 2,500 mcg/mL (2.5 mg/mL); 1 unit ≈ 25 mcg.

Is DSIP FDA-approved?

No — DSIP is not FDA-approved and is sold for laboratory research use only.

References

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