David P.
Independent Researcher
The CoA matched what I independently verified in my own assay. That's not something I've been able to say about most suppliers.

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$57
Delta Sleep-Inducing Peptide — a 9-amino-acid neuropeptide associated with slow-wave sleep and HPA-axis modulation.
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At your Door in 3-5 Days
David P.
Independent Researcher
The CoA matched what I independently verified in my own assay. That's not something I've been able to say about most suppliers.
Johanna M.
— Protocol researcher
Compound arrived lyophilized, correctly labeled, with a batch-specific CoA. Exactly what a research order should look like.
Edmund.
— Biochem researcher
I switched to Woosh after a competitor's purity claim didn't hold up to third-party testing.
Sarah C.
— Independent researcher
The research library is genuinely useful. Study citations, mechanism breakdowns — not just marketing copy.
Designation: RUO — Research Use Only. Not for human or veterinary use.
Delta Sleep-Inducing Peptide — a 9-amino-acid neuropeptide associated with slow-wave sleep and HPA-axis modulation.
The Research Profile section below details the mechanisms and the literature that frames each.
Every vial ships with a Certificate of Analysis tied to its batch. Third-party verified at ≥99% purity by independent HPLC and mass-spec. Discreet packaging, cold-chain handling where required, at your door in 3–5 business days.
If your shipment is delayed, damaged, or fails CoA verification, we replace it — no questions asked.
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View cartResearchers often pair DSIP with these compounds for multi-system protocols.
This peptide has been the subject of extensive preclinical investigation across multiple biological systems.
Key areas of research interest include the following.
EEG studies in rodents and humans report increased delta-wave (slow-wave) activity and improved sleep continuity after DSIP administration, particularly in subjects with disrupted baseline sleep.
Normalizes cortisol rhythm in stress-disrupted models. Published in chronic-stress and adrenal-fatigue research contexts.
Documented analgesic effects in chronic-pain models and reduced stress-marker elevation under cold-water-swim and restraint-stress protocols.
DSIP is blood-brain-barrier permeable. Short plasma half-life (~7 minutes) is offset by downstream-receptor signaling duration. Lyophilized powder is stable when kept at 2–8°C.
Every Woosh batch undergoes independent third-party testing. The CoA for this product is batch-specific — issued by the testing laboratory, not generated by Woosh.

RESEARCH GRADE . 99% PURITY
DSIP RESEARCH
DSIP
DSIP
CAS NUMBER
62568-57-4
MOLECULAR FORMULA
C35H48N10O15
MOLECULAR WEIGHT
848.81 g/mol
PURITY
>99% HPLC
DESIGNATION
RUO . RESEARCH USE ONLY
Not for human or veterinary use
BATCH VERIFIED
Research Use Only
This product is strictly for in vitro research and laboratory use only. Not for human or veterinary consumption. By purchasing, you confirm use in a controlled research setting.
Every batch is independently tested via third-party HPLC and mass spec. The full Certificate of Analysis is published before purchase, verifying >99% purity.
A CoA documents the exact compound tested, its purity, and batch identifiers. It's the only independent proof that what's in the vial matches what's on the label.
These are research-grade compounds intended for laboratory study only. Not for human or veterinary use. All research protocols should follow your institution's guidelines.
Store lyophilized peptides at –20°C. Once reconstituted, keep at 2–8°C and use within 30 days for maximum stability.
Every Woosh shipment includes protection. Lost, damaged, or stolen orders are replaced or refunded with documentation.
Orders placed before 12pm ship same-day. Standard delivery is 3–5 business days within the US.
Start with our research library — mechanism breakdowns, study citations, and protocol references. Our team can also point you to peer-reviewed literature for any compound.
Yes — volume pricing is available for research labs, universities, and bulk orders. Contact us with your expected monthly volume for a custom quote.