DSIP
- Dosage
- 99% Purity
- 10mg
$29.00
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Certificate of Analysis

Scientific Overview
Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first isolated from rabbit cerebral venous blood during slow-wave sleep in 1977. It crosses the blood-brain barrier and has been studied for its interactions with sleep architecture, stress-related biomarkers, and neuroendocrine pathways.
Chemical Makeup
Molecular Formula
C₃₅H₄₈N₁₀O₁₅
Molecular Weight
848.81 g/mol
Amino Acid Sequence
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
CAS Number
62568-57-4
Other Names
Delta Sleep Inducing Peptide, Deltaran
Appearance
White to off-white lyophilized powder
Storage
Store refrigerated at 2–8°C. For extended storage, keep frozen at -20°C. Protect from light and moisture.
Research & Clinical Studies

DSIP and Sleep Architecture
Polysomnographic studies reported changes in sleep spindle activity and alterations in the proportion of slow-wave sleep (stages 3 and 4) in some but not all controlled trials, suggesting complex dose-dependent interactions.

DSIP and Stress-Related Biomarkers
In preclinical models, DSIP administration was associated with modulation of ACTH and cortisol levels following stress exposure, with observed changes in the HPA axis response to acute stress.
References
Frequently Asked Questions
What is the purity of DSIP?
Our DSIP is verified at 98.5% purity through independent third-party HPLC analysis. Each production batch undergoes rigorous quality testing, and a Certificate of Analysis (COA) is available for review in our COA Library.
How should I store this peptide?
Store refrigerated at 2–8°C. For extended storage, keep frozen at -20°C. Protect from light and moisture. Once reconstituted, solutions should be used promptly or stored frozen to maintain stability. Avoid repeated freeze-thaw cycles for best results.
Do you provide Certificates of Analysis?
How is the product shipped?
All orders ship within 24 hours of purchase via USPS Priority Mail. Products are carefully sealed and packaged to ensure stability during transit. Orders over $150 qualify for free shipping. If you receive a damaged, defective, or incorrect product, please contact our support team with photos within 48 hours of delivery.
Is this product for human consumption?
No. This product is sold exclusively for in-vitro laboratory and research purposes. It is not intended for human or animal consumption, nor for any diagnostic or therapeutic applications. Purchasers must be 18 years of age or older and assume full responsibility for lawful handling.