DSIP is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated from rabbit brain in 1974 and studied mainly for promoting deep, slow-wave sleep.
DSIP Prices
131 vendors · 65 with an issuer-verified COA · lowest 10mg from $20.97 · checked
Where to buy DSIP: 131 vendors compared
| Vendor | Price | Actions |
|---|---|---|
| 4-test panelVerified COAILS Laboratories · Tested Jul 21, 2026 | $20.97 | Buy DSIP from Precisely Peptides |
| 2-test panelVerified COAJanoshik · Tested Sep 25, 2026 | $23.1010mg packageChecked today | Buy DSIP from Corix Labs |
| 7-test panelVerified COAFreedom Diagnostics · Tested Sep 14, 2026 | $23.66 | Buy DSIP from Modern Research Peptides |
| $25.49 | Buy DSIP from Red River Peptides | |
| 3-test panelVerified COAFreedom Diagnostics · Tested Jul 21, 2026 | $26.59 | Buy DSIP from ZC Labs |
| 3-test panelVerified COAFreedom Diagnostics | $26.99 | Buy DSIP from GMR Peptides |
| 8-test panelVerified COAKovera Labs · Tested Aug 23, 2026 | $26.99 | Buy DSIP from IDUN Peptides |
| $27.07 | Buy DSIP from PeakForce Labs | |
| 4-test panelVerified COAKovera Labs · Tested Sep 17, 2026 | $27.90 | Buy DSIP from Vector Amino Labs |
| $28.50 | Buy DSIP from Elytra Labs | |
| 7-test panelVerified COAKovera Labs · Tested Jul 21, 2026 | $28.80 | Buy DSIP from Lost Coast Aminos |
| 3-test panelVerified COAVanguard Laboratory · Tested Aug 20, 2026 | $29.25 | Buy DSIP from Studz Peptides |
| 3-test panelVerified COAFreedom Diagnostics · Tested May 18, 2026 | $29.59 | Buy DSIP from Amino Science Labs |
| 3-test panelVerified COAFreedom Diagnostics | $29.75 | Buy DSIP from Hacker Peptides |
| 5-test panelVerified COAKovera Labs · Tested Jun 3, 2026 | $30.00 | Buy DSIP from Ascension Peptides |
| 4-test panelVerified COAILS Laboratories | $31.46 | Buy DSIP from Puratek Peptides |
| 6-test panelVerified COAILS Laboratories · Tested Aug 14, 2026 | $31.50 | Buy DSIP from NextGen Peptides |
| 5-test panelVerified COAKovera Labs · Tested Jun 11, 2026 | $31.99 | Buy DSIP from PuraSynth Labs |
| $32.09 | Buy DSIP from Durham Peptides | |
| $33.11 | Buy DSIP from T-Core Biotech | |
| $33.75 | Buy DSIP from Atomik Labz | |
| 5-test panelVerified COAVanguard Laboratory · Tested Mar 30, 2026 | $33.99 | Buy DSIP from Orbitrex Peptides |
| 2-test panelVerified COAJanoshik · Tested Jan 22, 2026 | $34.20 | Buy DSIP from Peptide Giants |
| $35.10 | Buy DSIP from Ararat Peptides | |
| $35.10 | Buy DSIP from Noble Sciences | |
| 5-test panelCOA on fileAverix Laboratories (in-house) · Tested Apr 1, 2026 | $35.99 | Buy DSIP from Averix Labs |
| $35.99 | Buy DSIP from HLX Labs | |
| $35.99 | Buy DSIP from Prime Peptide Solutions | |
| 6-test panelVerified COAProof Point Analytical · Tested Sep 23, 2026 | $35.99 | Buy DSIP from Prism Labs |
| 3-test panelVerified COAJanoshik · Tested Feb 20, 2026 | $35.99 | Buy DSIP from Validated Peptides |
| $36.00 | Buy DSIP from Elite Edge Biotech | |
| 4-test panelVerified COAILS Laboratories · Tested Jun 16, 2026 | $36.00 | Buy DSIP from American Amino & Peptides |
| Verified COASteriGenix Analytical | $38.24 | Buy DSIP from Purgo Labs |
| 3-test panelVerified COAFreedom Diagnostics · Tested Jul 21, 2026 | $39.18 | Buy DSIP from Everest Peptides |
| 6-test panelVerified COALiquilabs | $39.3010mg packageChecked today | Buy DSIP from Particle Peptides |
| 5-test panelVerified COAKovera Labs | $39.99 | Buy DSIP from Evo Labs Research |
| $39.9910mg packageChecked Oct 4 | Buy DSIP from Peptides Lab UK | |
| $40.082 × 5mg packages · 10mg totalChecked today | Buy DSIP from Pure Peptides UK | |
| $40.0910mg packageChecked today | Buy DSIP from Regenix Peptides | |
| 6-test panelVerified COAKovera Labs · Tested May 25, 2026 | $40.49 | Buy DSIP from Glacier Aminos |
| 3-test panelVerified COAFreedom Diagnostics · Tested Dec 27, 2025 | $40.79 | Buy DSIP from Synthesis Peptides |
| 2-test panelVerified COAJanoshik · Tested Jul 14, 2026 | $41.39 | Buy DSIP from ZestyRat Research |
| 4-test panelVerified COAFreedom Diagnostics | $41.40 | Buy DSIP from Novaglo Research |
| 3-test panelVerified COAFreedom Diagnostics · Tested Sep 4, 2026 | $41.65 | Buy DSIP from Peptide Maxxing |
| $42.04 | Buy DSIP from Volta Peptides | |
| $42.49 | Buy DSIP from EZ Peps | |
| 3-test panelCOA on fileAnalytical Formulations · Tested May 1, 2026 | $42.90 | Buy DSIP from Alpha Peptides |
| $43.11 | Buy DSIP from Zen Aminos | |
| 3-test panelVerified COAHorizon Analytical · Tested Aug 7, 2026 | $43.19 | Buy DSIP from MsAmino |
| $44.1610mg packageChecked today | Buy DSIP from Optic Labs AU | |
| 1-test panelVerified COAILS Laboratories | $44.99 | Buy DSIP from Amino Club |
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| 3-test panelVerified COAKovera Labs · Tested Jul 18, 2026 | $45.00 | Buy DSIP from Peptoria |
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| 3-test panelVerified COAHorizon Analytical · Tested Jul 25, 2026 | $46.75 | Buy DSIP from Impact Aminos |
| 2-test panelVerified COAFreedom Diagnostics · Tested Mar 17, 2026 | $46.78 | Buy DSIP from MS Peptides |
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| 2-test panelCOA on fileVanguard Laboratory · Tested Jul 4, 2025 | $47.98 | Buy DSIP from Vital Core Research |
| 3-test panelVerified COAFreedom Diagnostics · Tested Aug 20, 2026 | $48.00 | Buy DSIP from Veragen Labs |
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| COA on fileTestides · Purity 99.53% | $49.81 | Buy DSIP from Vistara Labs |
| 3-test panelVerified COAFreedom Diagnostics | $49.9910mg packageChecked today | Buy DSIP from Alpha Pro Peptides |
| 3-test panelVerified COAFreedom Diagnostics · Tested Jan 23, 2026 | $50.002 × 5mg packages · 10mg totalChecked today | Buy DSIP from PeakForm Peptides |
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| 3-test panelVerified COAFreedom Diagnostics · Tested Jul 16, 2026 | $53.99 | Buy DSIP from Rebirth Labs |
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| $55.80 | Buy DSIP from Peptides For Less | |
| $56.002 × 5mg packages · 10mg totalChecked today | Buy DSIP from Omega Peptides | |
| 5-test panelVerified COAFreedom Diagnostics · Tested Jun 14, 2026 | $56.10 | Buy DSIP from Nura Peptide |
| 2-test panelVerified COAJanoshik | $56.56 | Buy DSIP from CertaPeptides |
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| 3-test panelVerified COAHorizon Analytical | $58.50 | Buy DSIP from Blank Peptides |
| 3-test panelCOA on fileAccurate Test Labs | $58.50 | Buy DSIP from Eon Peptides |
| 3-test panelVerified COAFreedom Diagnostics · Tested Jul 24, 2026 | $58.50 | Buy DSIP from Great Northern Peptides |
| 3-test panelVerified COABT Labs · Tested Aug 26, 2026 | $58.65 | Buy DSIP from Alpine Peptide |
| $59.40 | Buy DSIP from Ascend Amino | |
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| $59.50 | Buy DSIP from Vantyx Research | |
| $59.982 × 5mg packages · 10mg totalChecked Oct 5 | Buy DSIP from Vortex Research | |
| $60.002 × 5mg packages · 10mg totalChecked today | Buy DSIP from Ignite Peptides | |
| $61.18 | Buy DSIP from Summit Research Supply | |
| $62.04 | Buy DSIP from BergdorfBio | |
| 5-test panelVerified COAAccumark Labs · Tested Aug 21, 2026 | $62.18 | Buy DSIP from Paramount Peptides |
| 2-test panelVerified COAJanoshik · Tested Jun 10, 2026 | $62.40 | Buy DSIP from Purus Peptides |
| 4-test panelVerified COALiquilabs · Tested Sep 8, 2026 | $62.5410mg packageChecked Oct 7 | Buy DSIP from Adria Science |
| 3-test panelVerified COAFreedom Diagnostics | $62.91 | Buy DSIP from Instant Peptides |
| 6-test panelVerified COAKovera Labs · Tested Apr 7, 2026 | $62.98 | Buy DSIP from Optimum Formula |
| $62.98 | Buy DSIP from RUO Market | |
| 4-test panelVerified COAJanoshik · Tested Sep 1, 2026 | $63.00 | Buy DSIP from Giga Compounds |
| 3-test panelVerified COAKovera Labs · Tested Aug 13, 2026 | $63.0010mg packageChecked today | Buy DSIP from Pure Peptides |
| 3-test panelVerified COAJanoshik · Tested Oct 7, 2025 | $66.842 × 5mg packages · 10mg totalChecked today | Buy DSIP from Kensington Labs |
| 6-test panelVerified COABioSyn Systems · Tested Jan 13, 2026 | $67.18 | Buy DSIP from Cenexa Labs |
| 3-test panelVerified COAFreedom Diagnostics · Tested May 4, 2026 | $67.20 | Buy DSIP from VAYN |
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| 6-test panelVerified COAJanoshik · Tested Apr 28, 2025 | $67.50 | Buy DSIP from Hydro Research |
| 2-test panelVerified COAJanoshik · Tested Aug 25, 2026 | $69.7810mg packageChecked today | Buy DSIP from Ultima Life |
| $70.0010mg packageChecked Aug 2 | Buy DSIP from Pristine Aminos | |
| 3-test panelVerified COAFreedom Diagnostics · Tested Mar 3, 2026 | $71.98 | Buy DSIP from Alera Research |
| 5-test panelVerified COAFreedom Diagnostics · Tested Jun 18, 2026 | $71.99 | Buy DSIP from SKO Compounds |
| $72.00 | Buy DSIP from Ivory Labs | |
| 3-test panelVerified COAFreedom Diagnostics · Tested Apr 14, 2026 | $72.00 | Buy DSIP from Kronos Peptides |
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| $79.0010mg packageChecked today | Buy DSIP from True Research Labs | |
| $80.0010mg packageChecked today | Buy DSIP from Alpha Carbon Labs | |
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| 2-test panelVerified COATestides · Tested May 26, 2026 | $93.982 × 5mg packages · 10mg totalChecked today | Buy DSIP from Cellugenix Peptides |
| 4-test panelCOA on fileAxisPharm · Tested Dec 17, 2025 | $94.99 | Buy DSIP from BioPure Peptides |
| 3-test panelVerified COABioViridian | $99.00 | Buy DSIP from American Peptides |
| $99.9915mg packageChecked today | Buy DSIP from Legion Peptides | |
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| 3-test panelVerified COAILS Laboratories · Tested Aug 10, 2026 | $103.4710mg packageChecked today | Buy DSIP from Nova Biolabs |
| $103.50 | Buy DSIP from Peptides Costa Rica | |
| $107.985% off via our link·auto2 × 5mg packages · 10mg totalChecked today | Buy DSIP from Licensed Peptides | |
| 3-test panelVerified COAFreedom Diagnostics · Tested Jun 1, 2026 | $107.98 | Buy DSIP from UNYX Peptides |
| $108.00 | Buy DSIP from Upgrade Bio Labs | |
| 6-test panelVerified COAEthos Analytics · Tested Jun 18, 2026 | $109.9815% off, applied by our link·auto2 × 5mg packages · 10mg totalChecked today | Buy DSIP from PureBio Labs |
Tracked every day
DSIP listing prices, tracked daily
The five cheapest in-stock package prices for DSIP on each collected day, and the vendors that most often held those places.
Five cheapest in-stock package prices per day
Listed package price before coupons, any vial size. This is not the coupon-adjusted lowest 10mg price used to rank the comparison.
- Cheapest$20.04
- 2nd cheapest$21.99
- 3rd cheapest$23.00
- 4th cheapest$23.10
- 5th cheapest$24.29
Vendors most often in the cheapest five
- Pure Peptides UK18 days$20.040.0%
- Peptide Giants14 days$21.990.0%
- PeakForce Labs13 days$21.00last seen Oct 4, 2026-12.5%
- VAYN12 days$21.00last seen Sep 30, 20260.0%
- T-Core Biotech9 days$24.290.0%
- Elite Edge Biotech8 days$20.00last seen Oct 2, 20260.0%
- Rocky Mountain Compounds8 days$21.26last seen Oct 1, 20260.0%
- Alpha Peptides8 days$21.45last seen Oct 2, 20260.0%
Top 8 of 14 vendors that reached the cheapest five
Current market data
DSIP Price Report
A current summary of public listings after the price comparison above. Shipping and tax are not included.
The lowest current 10mg cost for DSIP is $20.97 from Precisely Peptides. The median across vendors is $50.00.
- Lowest 10mg cost
- $20.97Precisely Peptides
- Median 10mg cost
- $50.00One normalized offer per vendor
- Lowest package total
- $14.88Hacker Peptides · package size may differ
- Public COA coverage
- 99%130 of 131 vendors
What the market shows
PeptidePrices found 153 in-stock listings from 131 vendors, checked through Oct 10, 2026. The lowest 10mg cost is 58% below the vendor median of $50.00; 65 vendors (50%) fall below that median. 130 of 131 vendors (99%) publish public COA evidence.
A public COA link shows that a vendor publishes testing data. It does not prove that every listed vial has a matching current report. Match the product, strength, batch, and lot before relying on a report.
How this report is calculated
The headline and median use each vendor's lowest whole-package checkout cost to obtain at least 10mg. Smaller packages are multiplied until the target is met, while larger packages retain their full checkout price. The lowest package total is shown only as secondary context because package sizes differ. Known public coupon discounts are applied. Shipping, tax, and unverified promotions are excluded.
Research context
What is DSIP? Research, safety, and status
DSIP (Delta Sleep-Inducing Peptide) is a small endogenous neuropeptide named for its original 1974 discovery as a substance that promoted delta-wave (deep) sleep in rabbits. Decades of research since have linked it to a surprisingly wide range of neuromodulatory roles, but it has never become a defined clinical therapy, its mechanisms are still described as under investigation.
It is investigational, not FDA-approved, and everything below is research context rather than medical guidance.
Key research takeaways
Beyond sleep it shows broad neuromodulatory effects, stress/cortisol modulation, pain modulation, and endocrine regulation, but its exact mechanisms and clinical efficacy remain genuinely unsettled.
It has an extraordinarily short half-life (~8 minutes), which is striking for a compound used to support an overnight effect, implying it acts as a signaling trigger rather than by sustained presence.
Human evidence is thin and old (a notable 1991 double-blind insomnia study); most data is animal or mechanistic. It is not FDA-approved.
DSIP at a glance
PeptidePrices safety rating
8/10 · Not FDA-approved
Mechanism
Neuropeptide that crosses the blood-brain barrier; modulates GHRH, somatostatin, and LH secretion; reduces somatostatin activity; promotes slow-wave (delta) sleep.
Research areas
Sleep improvement (insomnia, sleep quality); stress reduction; pain management; GH secretion support; opioid withdrawal; antioxidant effects.
Regulatory / research status
Research / preclinical only
Half-life
~30 minutes (plasma), but biological effects prolonged.
Storage
Lyophilized vial: store at -20°C long-term or 2-8°C short-term, protected from light.
Reported side effects
Generally well-tolerated. Occasional headache, slight fatigue post-injection. Long-term data limited.
Benign profile: well-tolerated in human studies (incl. a 1991 double-blind insomnia trial), with no reported tolerance, dependence, or withdrawal. Endogenous nonapeptide; main limitation is thin/old data, not safety signals. Safety ratings summarize published clinical data, adverse-event reporting, and regulatory status. How PeptidePrices rates evidence. Research information only, not medical advice.
Study highlights
- Originally isolated from rabbit cerebral venous blood during slow-wave sleep (Monnier et al., 1977), DSIP is one of the first peptides identified as a sleep regulator.
- Beyond sleep induction, has demonstrated analgesic properties in chronic pain models, stress-protective effects, and benefit in alcohol and opiate withdrawal syndromes.
- Multifunctional neuropeptide: modulates hypothalamic-pituitary axis, shows antioxidant activity, and a 2021 study demonstrated motor function recovery in rodent stroke models.
Selected references
- Original Discovery of Delta Sleep-Inducing Peptide · PubMed, 1977
- Delta Sleep-Inducing Peptide: A Review of Its Effects · European Journal of Anaesthesiology, 2001
- Acute and Delayed Effects of DSIP on Human Sleep · International Journal of Clinical Pharmacology, 1981
- DSIP in Chronic Insomnia Patients · Neuropsychobiology, 1992
- DSIP in Treatment of Alcohol and Opiate Withdrawal · European Neurology, 1984
- DSIP in Chronic Pain Treatment · European Neurology, 1984
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