Buy DSIP in the USA

Every DSIP lot we ship is validated by Janoshik Analytical via HPLC and mass spectrometry. The corresponding Certificate of Analysis is referenced from the product page so researchers can verify the exact batch they received. We do not ship without an in-hand COA.

Orders placed before 2 PM ET ship the same day from our New York research-supply facility. Free shipping is included on orders over $200, and every order includes batch-specific COA documentation.

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first isolated from rabbit brain tissue in 1977. Its name derives from early research demonstrating its ability to induce delta wave sleep patterns in experimental models, though its mechanisms and functions extend beyond sleep regulation.

DSIP has been studied for its potential involvement in various physiological processes including stress response modulation, pain perception, and endocrine regulation. Research suggests it may influence the hypothalamic-pituitary-adrenal (HPA) axis and interact with multiple neurotransmitter systems.

Studies have explored DSIP's effects on sleep architecture, cortisol levels, and stress-related behaviors. Its relatively short amino acid sequence (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) and unique pharmacological profile make it a valuable research tool for investigating sleep physiology and neuroendocrine interactions.

Researchers should refer to peer-reviewed publications for primary sources on this compound. DSIP is sold strictly for laboratory research use and is not intended for human or veterinary use.

Lyophilized DSIP stores at −20 °C protected from light. After reconstitution with bacteriostatic water per your laboratory's SOP, refrigerate at 2–8 °C and reference your lot's COA for any compound-specific guidance.

BioInfinity Lab ships DSIP same-day from New York for all orders placed before 2 PM ET, Monday through Friday. We use insulated cold-shipping where indicated. International researchers should review our /shipping page for region-specific guidance.