DSIP Australia

DSIP Australia. DSIP is the sleep peptide. The research reports more slow wave sleep, the deep stage most tied to physical recovery, along with faster sleep onset and a less fragmented night. Beyond sleep, the literature reports changes in stress hormone responses, specifically cortisol and ACTH, changes in pain thresholds, and a strand on withdrawal symptoms in dependence research. Worth knowing before you read further: results across studies are inconsistent, and the reviews say so plainly.

How it does it. DSIP, or delta sleep-inducing peptide, is a peptide of nine amino acids occurring naturally in the body. It was isolated from the blood of sleeping animals in the 1970s and named for what it did to the EEG trace, pushing brain activity toward the slow delta waves that mark deep sleep. Unlike most compounds here it has no single identified receptor. It behaves as a diffuse modulator, which is why it is studied as a general neuromodulatory tool rather than a selective one.

The vial. Independently HPLC-tested above 99% purity by Janoshik, with the certificate of analysis published on this page and in the lab-reports library, carrying the measured number and a verifiable Janoshik key. Supplied in 5 mg and 10 mg freeze-dried vials, dispatched from Australia, AUD pricing. Supplied strictly for in-vitro and laboratory research use only. Not for human or animal consumption, not a therapeutic good, not TGA-approved.

Also listed as dsip peptide. DSIP peptide is the same nonapeptide as the vials above, delta sleep-inducing peptide, supplied in 5 mg and 10 mg freeze-dried vials.

DSIP (CAS 62568-57-4; molecular formula C35H48N10O15, average molecular weight ≈ 849 g/mol) is the amphiphilic nonapeptide Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE). It was originally isolated from cerebral venous blood and characterised as a delta-electroencephalogram-inducing factor by Schoenenberger and Monnier (PNAS, 1977); its nonapeptide sequence was determined and confirmed by synthesis in the follow-up work of Schoenenberger and colleagues (Pflügers Archiv, 1978).

In neuromodulation research, DSIP’s defining readout is enhancement of slow-wave (delta) and spindle EEG activity in animal models, positioning it as a probe of endogenous sleep-EEG and circadian modulation. The review literature — foundationally Graf and Kastin (Neuroscience & Biobehavioral Reviews, 1984) — also documents “extra-sleep” effects on neurotransmitter systems, hormone release, and stress and circadian pathways.

DSIP is characterised in the literature as a diffusible neuropeptide modulator rather than a ligand with a single well-defined cloned receptor, which is why it is studied as a broad neuromodulatory research tool rather than a selective receptor agonist. It remains a reference peptide in sleep-EEG and neuroendocrine research contexts.

The peptide’s amphiphilic character — a hydrophobic tryptophan alongside polar and acidic residues — is a defining structural feature noted throughout the handling and analytical literature, and it underlies the compound’s water solubility. Beyond its slow-wave-EEG readout, DSIP is also referenced for reported interactions with neurotransmitter and neuroendocrine systems, which is why the review literature describes a broad rather than a narrow research profile and treats it as a general neuromodulatory probe.

The information provided here is a research-reference summary only. Elite AU Peptides makes no medical, therapeutic, sleep-aid, or human-use claim about this product. DSIP is not TGA-approved, is not a therapeutic good, and is supplied strictly for in-vitro and laboratory research use only. Researchers should consult the primary peer-reviewed literature for protocol-specific reference values.

Reconstitute the lyophilised DSIP vial with bacteriostatic water for laboratory handling. The peptide is amphiphilic and water-soluble; add the diluent slowly down the vial wall and swirl gently rather than shaking. A 5 mg vial reconstituted in 2 mL of bacteriostatic water yields a 2.5 mg/mL working stock — adjust to your protocol’s target concentration.

Store the lyophilised powder at −20°C, desiccated and protected from light; once reconstituted, store refrigerated at 2–8°C and use within the documented research window, or aliquot and freeze to avoid repeated freeze-thaw cycles. Tamper-evident packaging; the batch label is the canonical reference for the certificate of analysis published in the lab-reports library.

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30-day returns on unused product in original packaging, with prior approval.