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Ordered a bundle to save on shipping - all vials arrived in one insulated pack, labels identical batch, CoA covers the lot. Great value.

5 mg · ≥99% purity
Delta sleep-inducing peptide for sleep and stress research.
£29.99 per vial · Tax calculated at checkout · Free tracked UK & EU shipping over £50

Every batch is independently HPLC assayed. Certificate of Analysis available on request.
Every UK order includes — free
Full refund
if a batch is off-spec
Free reship
if lost or damaged in transit
Same-day dispatch
Mon–Fri, order before 12:00 UK
Research use only
for laboratory work
Analytical data
Identity data cross-checked against PubChem; purity taken from the batch certificate of analysis.
About this compound
Delta-sleep neuropeptide (DSIP)
Half-life
≈ 7–15 min
DSIP (Delta Sleep-Inducing Peptide) is a nine-amino-acid neuropeptide first isolated from cerebral venous blood during slow-wave sleep. In the laboratory it is used as a reference ligand for sleep-architecture, circadian-rhythm and neuroendocrine-signalling research, where its interactions with delta-wave and stress-response pathways are studied across pre-clinical models.
DSIP is investigated in vitro for its modulation of neuroendocrine and circadian-signalling pathways, including interactions with the hypothalamic-pituitary axis.
Research areas
Research literature
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DSIP is Delta Sleep-Inducing Peptide, an endogenous nonapeptide first isolated from cerebral venous blood, supplied by MyPeptides for laboratory research use only.
DSIP is Delta Sleep-Inducing Peptide, an endogenous nonapeptide first isolated from cerebral venous blood. MyPeptides supplies it as a lyophilised 5 mg vial for in vitro laboratory research, HPLC assayed at ≥99% purity with a signed certificate of analysis on every batch.
Researchers reach for DSIP in sleep architecture, neuroendocrine and stress-response research. It is offered strictly for laboratory investigation — no personal-use claims, no dosing guidance, and no framing as a medicine.
The point of buying research grade rather than generic material is documentation. Every DSIP order carries lot-specific HPLC and mass-spec data, so the compound in your protocol matches the compound named on the paperwork. Lyophilised for stability, so reconstitution volume drives concentration cleanly in bench work.
Straight answers on purity, handling, dispatch and research use.
DSIP is Delta Sleep-Inducing Peptide, an endogenous nonapeptide first isolated from cerebral venous blood, supplied by MyPeptides as a lyophilised research vial for laboratory research use only.
In cited literature, DSIP is studied in sleep architecture, neuroendocrine and stress-response research. It is not a medicine and is not intended for human or veterinary use.
Every batch is third-party HPLC assayed at ≥99% purity. A signed certificate of analysis is available on request after checkout.
Ships lyophilised in a sealed borosilicate vial. Store at −20 °C; reconstitute with bacteriostatic or sterile water immediately before in vitro use.
Yes — tracked Royal Mail and DPD dispatch across the UK and EU, with free shipping on orders over £50. Weekday orders placed before 12:00 UK time ship the same day.
Verified feedback from qualified researchers across the UK & EU.
Ordered a bundle to save on shipping - all vials arrived in one insulated pack, labels identical batch, CoA covers the lot. Great value.
Support answered a batch question within a few hours over email. Rare to get that level of response from a research supplier. Product itself is exactly to spec.
Documentation is what sold me. Independent CoA per batch, clean HPLC traces. Reconstitution behaved exactly as expected. Solid supplier for research use.
Everything about this feels professional - from the site to the packaging to the paperwork. Purity assay matches what is on the label. Will keep ordering.
Third order from MyPeptides. Purity and appearance are consistent across batches. The paperwork is genuinely useful - mass, structure and CAS all included.
Really impressed with the packaging quality. Everything double-boxed, insulated and clearly labelled. Same day dispatch worked as promised.
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