The Peptide Company
Delta Sleep-Inducing Peptide 10 mg
$55.00
For Research Use Only.
Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide composed of nine
amino acids. Originally isolated in 1977 from rabbit cerebrovascular blood, DSIP has been a
subject of interest in scientific literature for its potential regulatory effects on sleep cycles,
neurochemical balance, and systemic physiology in animal and in vitro models.
Structural Properties
• Sequence: Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu
• Molecular Weight: ~850 Daltons
• Distribution: Detected in the hypothalamus, limbic system, pituitary, pancreas,
gastrointestinal tract, and various body fluids
• Blood-Brain Barrier: Reported to cross the BBB, suggesting potential for central nervous
system interaction in research contexts
Research Focus: Sleep Regulation
DSIP is frequently studied for its influence on slow-wave sleep (SWS), a critical phase of
the sleep cycle. Experimental data suggest that DSIP may modulate circadian rhythms and
affect sleep architecture in certain models.
Mechanisms of Interest (Based on Research Studies)
• Neurotransmitter Modulation: Influences GABA and other neurochemical pathways
associated with sleep regulation
• Endocrine Interaction: Shown in research to impact hormones such as corticotropin and
luteinizing hormone
• Stress Response Modulation: Investigated for its role in modulating stress adaptation
mechanisms in preclinical studies
Other Research Areas
• Mitochondrial Health & Oxidative Stress: Suggested antioxidant properties in select
models
• Pain Perception Models: Observed antinociceptive responses in certain animal studies
• Neuroprotection: Explored for potential protective activity in neurodegeneration models
• Metabolic Regulation: Studied for its influence on energy balance and
metabolic markers
Return & Refund Policy
Please contact us with any return needs. Due to the nature of our product and the way they need to be handled, we will not accept returns of opened products. Unopened products may be returned with a 20% restocking fee. We may replace a product if the unused portion is returned with prior verification from us.
Cancelation Policy
We are happy to cancel any orders that have not left our warehouse. Email our support team to cancel and receive a full refund. If the order has shipped, a refund can be issued once the product is returned, less any shipping costs. Shipping Policy: All orders are shipped via USPS unless otherwise arranged.










