Skip to content
The Source — MMXXVI. Complimentary U.S. shipping over $200. Third-party tested. American made.
The Collection
DSIP 10mg — The Source house vial

Front

Third-party testedAmerican madeShips in 24–48h

Cognitive

DSIP

$48.75$65.00

Strength  ·  10mg

Delta Sleep-Inducing Peptide is researched for its role in models of circadian and neuroregulatory signaling.

1
Bulk
5+ vials — 5% · 10+ vials — 10% preferred rate
Shipping
Complimentary US shipping over $200
Payment
Card · Zelle · Venmo · Cash App

Research Notice
For laboratory research use only. Not for human consumption.

The Dossier

Research Notes

Delta Sleep-Inducing Peptide is an amphiphilic nonapeptide first isolated in 1974 from the cerebral venous blood of animals in slow-wave sleep. It is notable for having no definitively identified precursor gene and no cloned dedicated receptor despite decades of study, and is often described as a 'programming modulator' with a bell-shaped concentration-response.

It is a specialized reference in cognitive study, characterized for its behavior across endocrine and central-nervous-system pathways.

Research Focus

  • Sleep-regulation models (slow-wave / delta sleep)
  • Stress-adaptation and HPA-axis models
  • Withdrawal-syndrome models
  • Antinociception research
  • Neuroprotection and cardioprotection models

Mechanism

With no cloned receptor, DSIP is characterized as interacting across multiple systems — including NMDA-receptor modulation, opioid-receptor activity, and α1-adrenergic engagement associated with pineal signaling.

It is reported to modulate MAPK/ERK signaling and to stimulate antioxidant enzymes while stabilizing mitochondrial oxidative phosphorylation.

Molecular Profile

Sequence
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE)
Molecular weight
848.8 Da
CAS number
62568-57-4
Also known as
Delta Sleep-Inducing Peptide

Storage & Handling

Store the lyophilized peptide at −20°C (or −80°C for longer terms); it is hygroscopic, so protect from moisture. Hold reconstituted solution frozen; the peptide is sensitive to aminopeptidase degradation.

References

  1. Kovalzon VM, Strekalova TV. Delta sleep-inducing peptide (DSIP): a still unresolved riddle. J Neurochem. 2006.
  2. Graf MV, Kastin AJ. Delta-sleep-inducing peptide (DSIP): a review. Neurosci Biobehav Rev. 1984.

Every vial ships with third-party HPLC verification; certificates of analysis are available on request.

Continue Exploring

From the Collection

Selank 10mg — The Source

Cognitive

Selank

10mg

$37.50$50.00

Semax 10mg — The Source

Cognitive

Semax

10mg

$37.50$50.00