DSIP — Research Evidence & Community Data
Also known as: Delta sleep-inducing peptide
Research & educational use only. This content is not medical advice. Consult a qualified healthcare professional before using any peptide compound.
What Is DSIP?
Delta sleep-inducing peptide (DSIP) is a naturally occurring nonapeptide first isolated for its association with slow-wave sleep. It is not FDA-approved and has no robust modern human efficacy randomized controlled trials; the evidence base is older, small, and inconsistent. It is studied in the context of sleep regulation and stress responses.
Is DSIP FDA Approved?
DSIP is not fda approved. It is treated as a research compound in the United States with no approved human clinical applications.
What Does the Research Show?
As of 2026, there is 1 human randomized controlled trial with a combined 40 subjects, and 20 animal model studies. Older, small, and inconsistent human studies plus animal data. No robust modern efficacy RCTs.
No linked evidence entries yet.
What Do Community Logs Show?
No community logs include DSIP yet. Browse community logs →
How Is DSIP Used in Research?
Mechanism of action. Proposed neuromodulatory effects on sleep architecture and stress-axis regulation; mechanism remains poorly defined.
Half-life. Reported very short plasma half-life.
Storage. Lyophilized: store frozen, protect from light. Reconstituted: refrigerate 2-8C.
Reconstitution. Reconstituted with bacteriostatic water for research handling. Math only - not dosing guidance. See the reconstitution calculator — a math tool only, not dosing guidance.
What Does DSIP's Evidence Tier Mean?
DSIP is rated Tier 4 · Theoretical. Mechanistic or theoretical basis only. Evidence tiers are a shorthand for how strong the human data is — Tier 1 reflects human randomized controlled trials, while lower tiers rest on observational, animal, or theoretical evidence. A higher tier means more confidence that observed effects are real and caused by the compound rather than by chance or bias. For how to weigh each tier, see our guide to understanding peptide evidence tiers.
How Do You Evaluate DSIP Sourcing and Quality?
Because research-chemical DSIP is unregulated, sourcing quality varies widely between sellers. Before trusting any supplier, check its reputation and enforcement history in the ranked list of trusted peptide sellers, and look for a batch-specific certificate of analysis (COA) showing third-party HPLC or LC-MS purity testing. Purity claims without a named lab, a batch number, and a method are marketing, not data. If you are reconstituting lyophilized material, the reconstitution calculator handles the arithmetic — it is a math tool only and not dosing guidance.
Where to Buy DSIP: Trusted & Verified Sellers
DSIP is supplied by specialist research-chemical sellers rather than pharmacies, so where you buy it matters as much as what you buy. The sellers below have published moderator-approved third-party lab results for DSIP, ranked by overall reputation score. Always confirm a current batch-specific COA before purchasing.
No seller has published a lab result for DSIP yet. Browse the ranked directory of trusted peptide sellers and check each one's lab testing and enforcement record before buying.
PeptidesHub does not sell DSIP or facilitate transactions — this list is for research transparency only.
How Are Adverse Reactions to DSIP Reported?
Structured adverse-event reports help the whole community spot safety signals early. You can browse approved reports on the adverse events page or submit one yourself. For a serious or life-threatening reaction, seek medical care and report it to FDA MedWatch.
Frequently Asked Questions
DSIP is not fda approved. It is treated as a research compound in the United States.