DSIP
5mg
DSIP (Delta Sleep-Inducing Peptide) is a nine-residue neuropeptide first isolated in 1977 from cerebral venous blood during induced-sleep experiments. Research has explored its part in sleep regulation, stress modulation and neuroendocrine activity, including circadian-rhythm effects and interactions with the hypothalamic-pituitary axis. It remains a compound of interest in sleep-physiology and stress-response research. Supplied as lyophilised powder and released against a third-party HPLC certificate on this page. In-vitro research use only.
Published research on DSIP is indexed on PubMed. See our full UK buyer's guide for DSIP.
Intended Use: Strictly for in-vitro laboratory research. Not for use in humans or animals. Not to be used in foods, drugs, or medical diagnostics. This product has not been evaluated by the MHRA or FDA. Buyer assumes full responsibility for safe handling and regulatory compliance.
98%+
Purity
LAB
Certified
SAME
Day Ship
Quantity
Add £31.01 more for free UK delivery
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Bacteriostatic Water 10ml
Required to reconstitute lyophilised peptides.
Research Use Only
This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.
Certificate of Analysis
Third-party tested
Lyophilised Stability
24 months
Sealed at -20°C, light-protected
Reconstituted Stability
Up to 3 months
Stored at 2-8°C after mixing
Cold-Chain Shipping
Always
Dry-cold pack, Royal Mail Tracked 24
Important Notice
All compounds are sold individually and do not include research supplies. Products are provided in lyophilised (powder) form and require proper reconstitution before use in research settings.
Related Products
Research Overview
DSIP (Delta Sleep-Inducing Peptide) is a nine-amino-acid neuropeptide carrying the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. It was first identified in 1977, when the Swiss researchers Schoenenberger and Monnier isolated it from the cerebral venous blood of rabbits during electrically induced sleep, and it has since been studied for its part in sleep architecture, stress-response modulation, and neuroendocrine activity. Work has examined its effect on circadian rhythm, its interplay with the hypothalamic-pituitary axis, and its possible influence on cortisol and ACTH during stress. The delta-wave sleep patterns from which the peptide takes its name feature prominently in that record. DSIP research also reaches past sleep physiology into opioid receptor modulation, attenuation of withdrawal symptoms, and free-radical scavenging. Its stability in serum and its ability to cross the blood-brain barrier make it a practical instrument in sleep physiology and chronobiology, and its capacity to lower corticotropin levels hints at a role in stress-adaptive pathways, adding depth to a profile that goes beyond simple sleep induction.
Product Specifications
Laboratory Handling
- Store lyophilised vials at -20°C. Refrigerate reconstituted DSIP at 2-8°C and use within 4 weeks.
- Reconstitute with bacteriostatic water using a gentle swirl, and keep the solution away from shaking or vortexing.
- Work under aseptic laboratory conditions with sterile equipment through reconstitution and aliquoting.
- Avoid repeated freeze-thaw cycles by drawing measured aliquots from the reconstituted stock for consistent use.
Frequently Asked Questions
DSIP
5mg · £13.99