For Research Purposes Only · Not For Human Consumption
Sleep / Neuropeptide Research
Delta Sleep-Inducing Peptide. Nonapeptide studied for slow-wave sleep architecture, stress response and neuroendocrine modulation.
Vial size
Quantity
£13.99
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SSL encrypted · CoA published for this lot
Certificate of Analysis
DSIP 5mg
The CoA you download is the exact certificate produced for this lot — no edits.
Storage & handling
Keep it stable, keep it sterile
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood during electrically induced sleep by Monnier and Schoenenberger (1977). Research has investigated DSIP in slow-wave sleep architecture, stress-response modulation, hypothalamic-pituitary-adrenal axis regulation and antioxidant pathways. ≥98% HPLC, third-party CoA.
DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood during electrically induced sleep by Monnier and Schoenenberger (1977). Extensively researched for slow-wave sleep architecture, stress-response modulation, HPA-axis regulation and antioxidant pathways. UK Peptides supplies DSIP 5mg as ≥98% HPLC lyophilised powder with a signed third-party Certificate of Analysis.
Published research has investigated DSIP in slow-wave sleep and EEG-architecture studies, HPA-axis and cortisol-modulation research, antioxidant and neuroprotection models, stress-response modelling, and chronic-pain and seizure-model research. It is one of the few research peptides with a documented sleep-modulatory profile in preclinical work.
Store the lyophilised vial at -20°C, sealed and protected from light. Refrigerate the reconstituted solution at 2–8°C and use within 28 days. Do not refreeze.
Every DSIP 5mg vial is independently HPLC-UV tested to ≥98% purity by an accredited independent laboratory, with mass-spectrometry identity confirmation against the published molecular weight of 848.83 Da. The signed PDF CoA is supplied with every order.
UK-stocked, same-day Manchester dispatch, third-party HPLC verification on every batch and Royal Mail Tracked 24 with insulated cold-chain packaging. Full lot traceability from vial sticker to signed CoA on this product page.
The science, in depth
Mechanism, the published evidence and handling detail for DSIP are covered in full in our research library — 6 referenced articles rather than a summary on a product page.
Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu), first isolated from rabbit cerebral venous blood in 1977 by Monnier and Schoenenberger during electrically-induced sleep experiments. Despite four decades of investigation, no specific DSIP receptor has been definitively characterised.
Regulatory & compliance notice
This product is supplied strictly for in-vitro laboratory research. It is not a licensed medicine in the United Kingdom, is not approved by the Medicines and Healthcare products Regulatory Agency (MHRA) or the European Medicines Agency for human or veterinary use, and is not intended to diagnose, treat, cure or prevent any disease. Nothing on this page constitutes medical advice.
Last reviewed 22 July 2026.
Peer-referenced articles from our research library covering mechanism, evidence and handling.
Research Article
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Every batch independently tested by an accredited independent laboratory before dispatch. The signed certificate for this lot is published on this page.
Legal notice
This product is sold strictly for in-vitro laboratory research purposes only. It is not approved for human or veterinary use, is not a drug, food, or cosmetic, and should not be misused as such. UK Peptides accepts no liability for misuse. By purchasing you confirm you are a qualified researcher aged 18 or over.
DSIP 5mg
£13.99
