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DSIP

Found in the blood of sleeping animals, and after fifty years still not fully explained.

PropertyValue
TypePeptide, 9 amino acids
NameDelta sleep inducing peptide
Research fieldSleep, day-night rhythm, stress
Research statusPreclinical
FormFreeze dried powder

What it is

Isolated in the 1970s from the blood of sleeping rabbits. The name comes from the deep sleep phase in which it was found.

How it works

That is the open question. No receptor has been identified that it clearly acts on, and the described effects range from sleep to stress regulation. It is precisely that uncertainty that keeps it interesting as a research model.

What the research shows

Most work dates from the 1970s and 1980s. Results were not consistent enough to lead to a clear application, which explains why it never went beyond research.

Research status

Preclinical.

Practical

A short chain, keeps well as a powder. Dissolves normally in bacteriostatic water.

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What this site is and is not
This site explains what the scientific literature says about peptides. It is not medical advice and not a set of instructions. The substances discussed here are research compounds: they are not approved for use in humans or animals. If you have a health question, see a doctor.

Updated 2026-10-03

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