Reviewed Mar 2026 | PubMed sources
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DSIP vs Selank: Head-to-Head Comparison

DSIP (Delta Sleep-Inducing Peptide) and Selank both address stress-related issues but from different angles. DSIP promotes delta-wave sleep and has been studied for insomnia, while Selank is an anxiolytic that reduces stress and anxiety. Both can indirectly improve sleep quality.

Side-by-Side Comparison

DimensionDSIPSelank
Evidence LevelMixed clinical results; some European studiesApproved in Russia; consistent clinical data
FDA StatusNot approvedNot approved in US/EU; approved in Russia
MechanismModulates sleep architecture, cortisol, and LH releaseGABA modulation, serotonin metabolism, tuftsin analog
Primary UseSleep induction, insomnia, stress-related sleep issuesAnxiety reduction, stress management, immune support
Side EffectsGenerally well-tolerated; morning grogginess possibleVery well-tolerated; minimal reported
Route of AdministrationIntravenous, subcutaneous, or intranasalIntranasal drops
Evidence Level
DSIP
Mixed clinical results; some European studies
Selank
Approved in Russia; consistent clinical data
FDA Status
DSIP
Not approved
Selank
Not approved in US/EU; approved in Russia
Mechanism
DSIP
Modulates sleep architecture, cortisol, and LH release
Selank
GABA modulation, serotonin metabolism, tuftsin analog
Primary Use
DSIP
Sleep induction, insomnia, stress-related sleep issues
Selank
Anxiety reduction, stress management, immune support
Side Effects
DSIP
Generally well-tolerated; morning grogginess possible
Selank
Very well-tolerated; minimal reported
Route of Administration
DSIP
Intravenous, subcutaneous, or intranasal
Selank
Intranasal drops

Peptide Overviews

DSIP (Delta Sleep-Inducing Peptide)

DLimited Data

DSIP is a neuropeptide originally isolated from rabbit brain during induced sleep. Research suggests it may modulate sleep patterns, stress responses, and neuroendocrine function.

Sleep & StressNot Approved
View full DSIP (Delta Sleep-Inducing Peptide) profile →

Selank

BHuman Studies

Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is approved in Russia as an anxiolytic and nootropic medication.

Sleep & StressNot Approved
View full Selank profile →

Supplies for Both

Common research handling and preparation supplies for injectable peptide workflows.

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DSIP vs Selank: FAQ