2/10
Mostly Real
BS Scale Score
Solid evidence from human clinical trials
"DSIP fixes insomnia and resets your sleep architecture"
1-3
Mostly Real
4-6
Overhyped
7-10
Mostly BS
The Verdict
Soviet sleep researchers published this in the 1980s. The field has not exactly run with it.
The Evidence
Delta Sleep-Inducing Peptide was isolated in 1977 from rabbit brains during deep sleep and generated early excitement. Human studies in the 1980s showed some reduction in sleep latency, but the research largely stalled. DSIP has a half-life of minutes in blood, which raises serious questions about whether injected DSIP even reaches the brain intact. Modern sleep peptide research has moved on; DSIP is still circulating on biohacker forums because old studies aren't corrected — they just stop being cited by scientists.
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