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Market data · 66 suppliers · All regions

DSIP prices: 66 suppliers compared

66 of the suppliers we track list DSIP. They are ranked by PepFinder Score, which combines reliability, selection, pricing, delivery, support and customer reviews, and shown with the prices they list per mg. We don't sell DSIP, and we give no guidance on its use.Also listed as: Delta sleep-inducing peptide

Prices checked 23 Sept 2026 · 96 listings · 85 in stock · Neuropeptide analogues

DSIP · listed price per mg
USD · 27 suppliersmedian US$7.28/mg
US$3.20/mgUS$22.23/mg
GBP · 13 suppliersmedian £2.80/mg
£1.04/mg£10.76/mg
AUD · 7 suppliersmedian A$8.95/mg
A$4.25/mgA$23.00/mg

Each currency is shown separately; prices are never converted.

Regulatory status

Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.

At a glance · 23 Sept 2026

Suppliers tracked
66 list DSIP, 85 listings in stock
Price per mg (USD)
US$3.20/mg to US$22.23/mg, median US$7.28/mg, across 46 listings from 27 suppliers
Test certificates
Not yet collected by PepFinder for DSIP; check each supplier's site. How to read a COA
Legal status
Rules differ by country. Legal status by country

What DSIP is

DSIP (delta sleep-inducing peptide) is a nine-amino-acid peptide first isolated in 1977 by a Basel group from the blood of rabbits in which sleep had been induced. Early small studies suggested it might promote sleep, but later double-blind trials in people with chronic insomnia found little clinical benefit, its natural role is still unclear, and it is not an approved medicine. Read the full DSIP guide, with the published research and references.

  4. 04

    Polaris Peptides

    US based
    Third-party testing stated
    No reviews yetFrom US$8.00/mg
    8.0/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP 5mg (Delta Sleep-Inducing Peptide) – tested at 7.5mg5mgUS$40.00US$8.00/mgIn stockOn their site ↗
  8. 08

    Direct SARMS

    US based
    No reviews yetFrom US$7.59/mg
    7.7/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP Peptide Vial2mg vialUS$22.76US$11.38/mgIn stockOn their site ↗
    DSIP Pre Mixed Peptide 5mg2 cartridgesUS$82.33US$16.47/mgIn stockOn their site ↗
    DSIP Pre Mixed Peptide 5mg1 cartridgeUS$41.16US$8.23/mgIn stockOn their site ↗
    DSIP Peptide Vial5mg vialUS$37.95US$7.59/mgIn stockOn their site ↗
    DSIP Pre Mixed Peptide 5mg3 cartridgesUS$111.14US$22.23/mgIn stockOn their site ↗
    DSIP Peptide Vial10mg vialUS$75.93US$7.59/mgIn stockOn their site ↗
  11. 11

    Tide Labs

    GB based
    Third-party testing stated
    No reviews yetFrom £3.18/mg
    7.6/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP (Delta Sleep-Inducing Peptide)5 mg£15.90£3.18/mgIn stockOn their site ↗
  17. 17

    PeptideProCanada

    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom CA$4.50/mg
    7.3/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP Canada – Laboratory Research Reagent (10mg)10mgCA$45.00CA$4.50/mgIn stockOn their site ↗
  37. 37

    Durham Peptides

    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom CA$5.00/mg
    6.8/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP (Delta Sleep-Inducing Peptide) — 10mg10mgCA$49.99CA$5.00/mgIn stockOn their site ↗
  41. 41

    ONYX BIOLABS

    US based
    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom US$9.00/mg
    6.7/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP 10mg (Delta Sleep-Inducing Peptide)10mgUS$89.99US$9.00/mgIn stockOn their site ↗
  45. 45

    Xeno

    US based
    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom US$6.00/mg
    6.7/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP10MGUS$60.00US$6.00/mgIn stockOn their site ↗
  46. 46

    British Peptides

    GB based
    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom £2.50/mg
    6.6/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP (Delta Sleep Inducing Peptide)10mg£25.00£2.50/mgIn stockOn their site ↗
  58. 58

    Peptides UK 4U

    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom £2.00/mg
    5.7/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP 15mg — Research Peptide UK15mg£29.99£2.00/mgIn stockOn their site ↗
  59. 59

    BioLongevity Labs

    US based
    Third-party testing statedCOA page linked, not reviewed
    No reviews yetFrom US$11.19/mg
    5.5/ 10PepFinder ScoreRead the review →
    Listing as namedSizePricePer mgStock
    DSIP (Delta Sleep-Inducing Peptide) (5mg)5mgUS$55.97US$11.19/mgIn stockOn their site ↗

DSIP market over time

The median listed price per mg across every tracked supplier listing DSIP in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices

USD · median per mg

No validated daily statistics yet. A trend appears once there is more than one day of data.

GBP · median per mg

No validated daily statistics yet. A trend appears once there is more than one day of data.

Catalogue changes, last 30 days

No DSIP listings added or withdrawn since we began recording catalogue changes.

Before you choose a DSIP supplier

Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.

For what DSIP is and what published studies have found, see our DSIP guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: see legal status by country, or narrow this list to your region above.

Checking a DSIP certificate of analysis

  1. The certificate names a laboratory you can find independently, and ideally one with no stake in the result.
  2. It carries a batch or lot number that matches the product page or the vial label, and a test date.
  3. It confirms identity by mass spectrometry, not only purity by HPLC. Purity alone does not show the vial contains DSIP.
  4. It includes the chromatogram and mass spectrum, not just a summary table.
  5. Where the laboratory offers online verification of its reports, the report number checks out.

Red flags

  • No certificates at all, or certificates available only “on request”.
  • The same certificate used for several products or several years of stock.
  • Payment only by cryptocurrency or bank transfer, with a discount for paying that way.
  • A price far below every other supplier on this page.
  • No company name, address or way to contact the business other than a web form.
  • Vials labelled only with a code rather than the product name and strength.

How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.

Vials, capsules and pre-mixed products

Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.

DSIP: questions

Where can I buy DSIP?

66 of the suppliers PepFinder tracks list DSIP. The highest rated are Simply Peptides, Bluum Peptides, Elite Research Labs. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews; nobody pays to be included or to rank higher.

How much does DSIP cost?

Listed prices in USD run from US$3.20/mg to US$22.23/mg, median US$7.28/mg, across 46 listings from 27 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.

What sizes is DSIP sold in?

Suppliers on this page list DSIP in 2mg vial, 2mg Vial, 5mg, 2 cartridges, 1 cartridge, 5mg vial. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.

Is DSIP legal to buy?

It depends on the country. PepFinder summarises the rules for the UK, the US, Canada, Australia and New Zealand, with links to the regulators' own statements. Choose a region above to see suppliers and the rules for that country.

How do I check a DSIP supplier's test results?

Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for DSIP from these suppliers, so check each supplier's own site.

How this list is built: suppliers appear because they list DSIP on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.