What is DSIP studied for?
DSIP (delta-sleep inducing peptide) is a nonapeptide isolated from the cerebral venous blood of sleeping rabbits. Laboratory research studies its role in modulating slow-wave sleep, dampening stress response and oxidative stress.
Information for laboratory research context only. Not medical advice.
Every batch independently verified.
- Verified purity: Every batch tested for peptide integrity and composition.
- Third-party certified: Analysis by ISO-accredited labs with validated procedures.
- Endotoxins screened: LAL test performed on every batch prior to release.
- Transparent results: The Certificate of Analysis (COA) for this product is shown below.
Purity
≥ 98.5%
Batch
On request
Method
HPLC-UV
Lab-verified purity
Every batch of DSIP is tested in-house and re-verified by an independent lab.
⚠ Preliminary specifications — COA PDF available on request via info@peptica.be
VERIFICATION KEY
On request
- Assay purity
- ≥ 98.5%
- Method
- HPLC-UV (220 nm)
- Batch number
- On request
- Manufactured
- —
- Expiry date
- —
- Endotoxins (LAL)
- < 0.25 EU/mg
Third-party verification is performed by an independent ISO-accredited analytical laboratory.
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RESEARCH CONTEXT
DSIP and circadian research
Delta Sleep-Inducing Peptide (DSIP) is a nine-amino-acid peptide originally isolated from the cerebral venous blood of rabbits during sleep. In preclinical research it is studied for delta-wave activity in EEG models and for the regulation of circadian markers.
DSIP is relatively short and hydrophilic, which makes it easy to reconstitute in bacteriostatic water. It is however sensitive to repeated freeze–thaw cycles — aliquot after reconstitution.
Researchers mapping neuropeptide modulation more broadly often include DSIP alongside Semax and Selank in the same experimental series.
For laboratory and research use only. Not for human or veterinary consumption. No medical advice.