Sleep & Circadian Research Peptides
Sleep-related peptide research is narrower than the metabolic or repair literature but mechanistically distinct. Delta-sleep-inducing peptide (DSIP) is the anchor compound, isolated originally from rabbit cerebral venous blood and studied since for slow-wave sleep architecture, stress-response modulation, and neuroendocrine signaling.
Surrounding it, researchers commonly include compounds touching the same axes from different directions: Selank for GABAergic modulation, and pineal-axis and mitochondrial compounds for circadian and cellular-energetics questions.
Supplied lyophilized in multi-vial research kits and shipped from our US facility with tracking. For in-vitro laboratory research and analytical method development only — not for human or veterinary use.
Delta sleep-inducing peptide studied for sleep architecture, stress resilience, and neuroendocrine support.
Anxiolytic peptide studied for stress reduction, memory improvement, and mood stabilization.
Nicotinamide adenine dinucleotide studied for cellular energy metabolism, DNA repair, and cognitive clarity.
ACTH(4-7) analog studied for cognitive enhancement, neuroprotection, BDNF upregulation, and focus.
Research reading on sleep
- What Is DSIP (Delta Sleep-Inducing Peptide)? ResearchDSIP (Delta Sleep-Inducing Peptide) is a nonapeptide studied in sleep-regulation and neuroendocrine research models. Here's what the literature describes.
- What Is Selank? Anxiolytic-Class Peptide ResearchSelank is a tuftsin-derived peptide studied in anxiolytic-class and GABAergic research models. Here's what the literature describes and how it's handled in the lab.
- Semax vs Selank: Research ComparisonSemax and Selank are often paired, but they trace to different parent peptides and are studied along different research lines. A structured head-to-head comparison.
Frequently asked questions
+What is DSIP?
Delta-sleep-inducing peptide is a nonapeptide first isolated in the 1970s from the cerebral venous blood of sleeping rabbits. It takes its name from the delta-wave (slow-wave) sleep activity observed in the original experiments, and remains the primary reference standard in peptide sleep research.
+Is DSIP only studied for sleep?
No. Despite the name, a substantial share of the DSIP literature addresses stress-response modulation, thermoregulation, and neuroendocrine signaling rather than sleep architecture specifically.
+Are these products for human use?
No. These are research reference standards supplied for in-vitro laboratory use only — not for human or veterinary use.
Related research topics
Researchers arriving at this collection are typically comparing sleep peptides, DSIP research, delta sleep inducing peptide, circadian rhythm peptide research. Each compound page carries CAS number, molecular formula, and per-lot third-party HPLC purity documentation.