DSIP Peptide Vials
Synthetic nonapeptide · 5mg–20mg · boxes of 10 vials
Free delivery worldwide on orders over $1,000 (about £749)
Strength 4 options · price per box
Lab report for this strengthSent free on WhatsApp on request
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- No minimumBoxes of 10 vials
- Tracked shippingDispatched in 1–2 working days
- Batch COAFree on request
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Often ordered together
One box of each. Change strengths or quantities in the cart.
Also ordered with DSIP
About DSIP
What is DSIP?
Overview
What is DSIP?
DSIP, or delta sleep-inducing peptide, is a synthetic nonapeptide first identified in studies of cerebral venous blood during slow-wave sleep. It is supplied as a lyophilised powder in sealed vials, boxed in tens, for laboratory research use only.
DSIP at a glance
| Compound | DSIP |
|---|---|
| Also known as | Delta sleep-inducing peptide, DSIP acetate, DSIP peptide |
| Classification | Synthetic nonapeptide |
| CAS number | 62568-57-4 |
| Molecular formula | C35H48N10O15 |
| Molecular weight | 848.81 g/mol |
| Sequence | Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu |
| PubChem CID | 68816 |
| Purity | 99%+ by HPLC |
| Physical form | Lyophilised powder |
| Available strengths | 5 mg, 10 mg, 15 mg, 20 mg |
| Box quantity | 10 vials |
| Price from | $7.29 per vial ($72.85 per box) |
| Research status | Not approved anywhere. Research is sparse and much of it dates from the 1970s and 1980s. Its role in the body remains unconfirmed. |
| Documentation | Batch-specific third-party COA |
These are catalogue target specifications, not batch results. The 99%+ purity figure is the specification we buy to. The authoritative figures for any particular box are the ones printed on that box’s Certificate of Analysis, which is lot-specific. What research grade actually means explains the difference. Terms such as HPLC purity and net peptide content are explained in the peptide glossary.
We make no “third-party verified” claim for a batch unless the matching report is supplied with it. Ask for the current COA for the lot in stock before you order — we will send it.
Prices for every strength
Pricing
DSIP price per vial: 5mg, 10mg, 15mg to 20mg
DSIP starts at $7.29 per vial (£5.46), sold in boxes of 10 at $72.85. One box is the smallest order and there is no trade account or minimum spend. Larger volumes are negotiable.
| Strength | Per vial | Box of 10 |
|---|---|---|
| 5 mg | $7.29 £5.46 | $72.85 £54.58 |
| 10 mg | $9.14 £6.85 | $91.42 £68.49 |
| 15 mg | $11.00 £8.24 | $110.00 £82.41 |
| 20 mg | $12.83 £9.61 | $128.26 £96.09 |
Storage & reconstitution
Handling
How should DSIP be stored and reconstituted?
Sealed vials tolerate ambient temperature in transit and keep at −20 °C beyond that. Reconstitute slowly down the vial wall, swirl rather than shake, then refrigerate at 2–8 °C and aliquot before freezing.
Why each of those matters, and what a freeze–thaw cycle actually costs: peptide handling and storage reference. How long a mixed vial keeps: reconstituted peptide shelf life.
What it is researched for
Research Context
What is DSIP researched for?
Below is a plain-English summary of what published research has investigated, and what it has found. These are descriptions of research activity and published results. They are not claims about what DSIP does, and nothing here is a statement that it is safe or effective for any purpose.
Sleep architecture research
DSIP was named after its discovery in the blood of sleeping rabbits, and early studies examined whether it increased slow-wave sleep. Results across laboratories were inconsistent, which is a large part of why interest faded. 12
Stress and hormone response
Some studies report effects on corticotropin and other hypothalamic-pituitary-adrenal hormones, and this has been a secondary line of investigation.
An honest caveat
Despite the name, DSIP has never been established as a sleep-regulating hormone. It remains a peptide of uncertain function, which is exactly why it still appears in exploratory research rather than clinical development. 3
References
- 1The influence of synthetic DSIP (delta-sleep-inducing-peptide) on disturbed human sleep. Experientia (1981). PMID 7028502
- 2Effects of delta sleep-inducing peptide on sleep of chronic insomniac patients. A double-blind study. Neuropsychobiology (1992). PMID 1299794
- 3Delta sleep-inducing peptide (DSIP): a still unresolved riddle. J Neurochem (2006). PMID 16539679
Links open the record on PubMed or PubMed Central. These are citations to published research, not claims about this product.
Laboratory uses
Applications
Where DSIP is used in the laboratory
- Sleep and circadian regulation research in animal and cell models
- Neuropeptide receptor binding studies
- Peptide stability research in biological buffers
- Analytical method development for small regulatory peptides
Batch COA
Verification
Does DSIP come with a COA?
Yes — every box. Each batch of DSIP is analysed by an independent third-party laboratory, and the certificate is tied to the batch number on the vial label.
Example COA. You receive the certificate matching your own batch.
Questions & answers
Questions
DSIP questions, answered
Why is DSIP called delta sleep-inducing peptide?
The name comes from the circumstances of its discovery rather than a confirmed mechanism. It was isolated from cerebral venous blood during delta-wave sleep in early research. The name has persisted, but the peptide remains under investigation and its endogenous role is not settled.
How much does DSIP cost?
DSIP starts at $7.29 per vial, sold in boxes of 10 vials at $72.85 per box (about £54.58). 4 strengths available: 5 mg, 10 mg, 15 mg, 20 mg. There is no minimum order.
Can I buy DSIP 10mg vials in the UK?
Yes. DSIP 10mg comes in boxes of 10 vials at $91.42 per box ($9.14 per vial, about £68.49 per box), sent tracked to UK addresses. There is no minimum order.
How is DSIP shipped to the UK and USA?
Tracked to the UK, USA, EU and worldwide, in plain packaging, dispatched within 1–2 working days. Country-by-country estimates are on the shipping page.
