For Research Use Only. This product is supplied exclusively for laboratory research and is not intended for human or veterinary use.
DSIP (Delta Sleep-Inducing Peptide) Research Material
Delta sleep-inducing peptide (DSIP) is a synthetic nonapeptide with the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. It was originally described in sleep-related experiments and has since been used in exploratory neuroendocrine research.
The literature is old, limited and inconsistent. A specific precursor gene and a dedicated receptor have not been firmly established, and published sleep findings should not be presented as settled clinical evidence.
Technical Specifications
| Product | DSIP |
|---|---|
| Peptide length | 9 amino acids |
| Sequence | Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-GluWAGGDASGE |
| Molecular weight | Approximately 848.8 g/mol |
| Purity | Above 99% by third-party HPLC testing |
| Physical form | Lyophilised research material |
| Available formats | 5mg and 15mg |
| Evidence status | Exploratory; proposed biology remains unresolved |
| Intended use | Laboratory research and analytical use only |
Independent Batch Testing
Every current ZENTRA DSIP batch is independently tested and records an HPLC purity result above 99%. Use the batch number printed on the product label to locate the corresponding third-party report in our Batch Verification and COA Centre. Researchers should consult the individual report for the exact analytical methods, result and testing date for their supplied batch.
Research Context
Early studies examined electroencephalographic sleep variables and neuroendocrine responses. Reviews noted variability between species, preparations and study designs, with no single mechanism accounting for all reported observations.
The responsible interpretation is that DSIP is a historical and exploratory research peptide. ZENTRA does not describe it as a proven sleep treatment and provides no dosing or human-use guidance.
Storage and Handling
Keep unopened lyophilised material at approximately -20°C for long-term storage or 2-8°C for short-term laboratory storage. Protect from light, moisture and repeated temperature changes.
What is DSIP?
DSIP is a nine-amino-acid synthetic research peptide originally associated with delta-sleep experiments.
What is its sequence?
Its sequence is Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu, abbreviated WAGGDASGE.
Is there a confirmed receptor?
No dedicated receptor has been firmly established.
Does the research prove a sleep benefit?
No. Findings are limited, dated and inconsistent, so the evidence should be treated as exploratory.
How is purity verified?
The current batch is independently HPLC tested above 99%, with its report available through batch verification.
Is DSIP intended for human use?
No. It is supplied solely for laboratory research and analytical work.
Selected Scientific Sources
Research Resources
- Selank Research Peptide
- Neuropeptide Research Bundle
- Batch Verification and COAs
- Research Compound Storage Guide
- Browse All Research Peptides
For research use only. Not for human or veterinary use.
