Sleep · 3 vendors stocking
Delta sleep-inducing peptide
Every point is published and checkable — how the value score is built ›
| Vendor | Listing | Size | Vial price | Per milligram, after code | Value | |
|---|---|---|---|---|---|---|
| ZestyRat Best buy | DSIP – 10mg | 10mg | $45.99 | $4.14 |
8.7 | View › |
| Dynamic | DSIP 15mg | 15mg | $89.99 | $6.00 | 5.5 | View › |
| Ascension | DSIP (10mg) | 10mg | $65.00 | $6.50 | 4.9 | View › |
Every row read from the vendor's live storefront on August 26, 2026. Ordered by value score, not by sticker price. Vials only — capsules, sprays and serums are excluded. Method ›
DSIP is a nine-amino-acid peptide isolated from rabbit cerebral venous blood in the 1970s and studied in sleep-architecture models. Every vendor we index stocks it.
Deeper background, sourcing and quality notes live on our sister site: Peptides Uncaged ›
Always-on partner code, re-tested at a live checkout. It stacks on the prices above, so a ZestyRat row within 10% of the leader is usually the cheaper order. Every other working code is on the Deal Board.
Questions
The cheapest DSIP vial across the four storefronts we index is ZestyRat Research at $45.99 for the 10mg vial — $4.60 per milligram Prices were read from the vendors' live catalogues on August 26, 2026.
ZestyRat Research, at $4.60 per milligram. That is 23% below the next-cheapest vendor on the board. The vendor our readers order from most, and every reader order has shipped. Ships the same day on orders placed before 3pm ET, USPS Priority. A free researcher account (21+) is set up once at checkout.
Across the vendors we index: 10mg, 15mg. Larger vials are almost always cheaper per milligram, which is why the table above is sorted on that column rather than on sticker price.
Vial sizes vary more than you would expect for a cheap peptide — 5mg, 10mg and 15mg all appear across the catalogues we index. Read the size column first.
No. DSIP is sold by every vendor listed here for laboratory research use only. Nothing on this page is medical advice or a recommendation to use any compound.
Also in Sleep
Vial Prices is an independent research library. We do not manufacture, stock, price, test or ship anything. We review suppliers on their published testing standards, reputation, fulfilment record and pricing, and the ratings we publish are our own editorial assessment.
Every compound referenced on this site is sold by its vendor strictly as a research chemical for in-vitro laboratory research only — not for human or animal consumption, and not intended to diagnose, treat, cure or prevent any disease. Nothing here is medical advice. We earn a commission on orders placed through our links, at no additional cost to you; all material connections are disclosed in line with FTC guidelines.