Login / Register
My Account
Login Register

Lost password?

or sign in with a social network
Google

A password will be sent to your email address.

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

or sign in with a social network
Google
0 Cart $0 0
0 Shopping Cart
Shopping cart (0)
Subtotal: $0

View cartCheckout

FREE standard shipping on all orders.
  • 🇺🇸 USA Domestic
  • Research Compounds
    • Research Peptides
      • Anti-Aging & Longevity Peptides
      • Cognitive & Nootropic Peptides
      • Cosmetics Peptides
      • Performance & Hormone Optimization Peptides
      • Recovery & Healing Peptides
      • Weight Loss & Metabolic Peptides
    • Peptide Blends
    • Tablets
    • Injectables
  • QSC
    • About QSC
      • QSC Price List
      • QSC FAQ
    • Peptide Calculators & Tools
    • Research Compound Manual
    • Site
      • Privacy Policy
      • Return, Refund & Shipping Policy
      • Terms and Conditions
    • Shipment Tracking
    • Contact Us
≥99% Purity Verified • COA on Every Product
Free Shipping on All Orders • FedEx 2Day in USA 🇺🇸
Domestic Warehouses: 🇺🇸 🇪🇺 🇬🇧 🇦🇺 🇨🇦
  • 🇺🇸 USA Domestic
  • Research Compounds
    • Research Peptides
      • Anti-Aging & Longevity Peptides
      • Cognitive & Nootropic Peptides
      • Cosmetics Peptides
      • Performance & Hormone Optimization Peptides
      • Recovery & Healing Peptides
      • Weight Loss & Metabolic Peptides
    • Peptide Blends
    • Tablets
    • Injectables
  • QSC
    • About QSC
      • QSC Price List
      • QSC FAQ
    • Peptide Calculators & Tools
    • Research Compound Manual
    • Site
      • Privacy Policy
      • Return, Refund & Shipping Policy
      • Terms and Conditions
    • Shipment Tracking
    • Contact Us
Login / Register
My Account
Login Register

Lost password?

or sign in with a social network
Google

A password will be sent to your email address.

Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.

or sign in with a social network
Google
0 Cart $0 0
0 Shopping Cart
Shopping cart (0)
Subtotal: $0

View cartCheckout

FREE standard shipping on all orders.
≥99% Purity Verified • COA on Every Product
Free Shipping on All Orders • FedEx 2Day in USA 🇺🇸
Domestic Warehouses: 🇺🇸 🇪🇺 🇬🇧 🇦🇺 🇨🇦

DSIP 5mg | 20-Vial Kit | Sleep Peptide Kit

QSC DSIP (Delta Sleep-Inducing Peptide) — ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.

✓ 99%+ Purity ✓ COA Available
✓ Free Shipping on All Orders ✓ Domestic Warehouses (USA/EU/UK/AU/CA)

$270

or
SKU: QSC-DSIP-5MG-20VIAL
Categories: Cognitive & Nootropic Peptides, Research Peptides, United States
Brand: QSC
Technical Specs & COA
PubMed
Disclaimer & Storage Guide

QSC RESEARCH GRADE

≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SPPS5-Region Domestic Shipping

What is DSIP?

DSIP (Delta Sleep-Inducing Peptide (nonapeptide)) is a 9-amino acid synthetic nonapeptide. Nonapeptide originally isolated from rabbit cerebral venous blood during sleep. Modulates sleep architecture by promoting delta wave (slow-wave) activity, interacts with opioid receptors and stress response systems, and demonstrates antioxidant activity in some models. Full mechanistic pathway incompletely characterised.

Research Applications

Sleep Architecture

Delta wave (slow-wave sleep) promotion and sleep stage modulation

Opioid Receptor Interaction

Opioid pathway effects and stress response modulation

Circadian Biology

Sleep-wake cycle research and circadian phase studies

HPA Axis

Stress response and cortisol modulation research

Antioxidant Models

ROS reduction and neuroprotective activity studies

Quick Specs

Form Lyophilized powder
Purity ≥99% by HPLC — every batch
CAS Number 62568-57-4
Molecular Formula C₇₇H₁₂₄N₂₂O₂₀
Peptide Type Synthetic Peptide / Neuroregulatory Peptide
Identity MS molecular weight confirmed — every batch
COA Janoshik-independent, publicly verifiable
Manufacture In-house Fmoc SPPS — Qingdao, China
Storage -20°C sealed | 2–8°C reconstituted (2–4 weeks)
Shelf Life 24 months unopened

Certificate of Analysis (COA)

QSC COA Report

✓ Verify on Janoshik ↗

🧪 Peptide Research Tools: Use QSC’s free peptide calculators — reconstitution, BAC water, dosing, half-life, and mixing charts.
🌍 Domestic shipping: 🇺🇸 USA  ·  🇪🇺 EU  ·  🇬🇧 UK  ·  🇨🇦 Canada  ·  🇦🇺 Australia
🧬 PubMed Research — DSIP
Search PubMed ↗
19 publications found Last 10 years 3 most recent shown
41490200
Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future Directions.
Rahman OF et al. · J Am Acad Orthop Surg Glob Res Rev 2026 View ↗
39798527
Domain-specific information preservation for Alzheimer's disease diagnosis with incomplete multi-modality neuroimages.
Xu H et al. · Med Image Anal 2025 View ↗
39444618
Pichia pastoris secreted peptides crossing the blood-brain barrier and DSIP fusion peptide efficacy in PCPA-induced insomnia mouse models.
Mu X et al. · Front Pharmacol 2024 View ↗

Showing 3 of 19 for DSIP

View all on PubMed ↗

Source: PubMed / NCBI  ·  Last 10 years  ·  Refreshed every 24 hours  ·  For research reference only — not clinical guidance.

⚠️ RESEARCH USE ONLY — NOT FOR HUMAN CONSUMPTION

QSC products are strictly for in vitro and in vivo laboratory research. Not intended for diagnostic, therapeutic, or personal use.

📋

Research Use Disclaimer

All QSC products are strictly for laboratory, scientific, and research use only. They are not for human consumption, medical treatment, diagnosis, or disease prevention.

By purchasing or using QSC products, you confirm:

  • You are a qualified researcher or acting under the supervision of one.
  • Products will only be used for legitimate research purposes.
  • Products are not evaluated by the FDA or any regulatory authority for human use.
  • You assume all responsibility for legal compliance, proper handling, and storage.
  • You meet the legal age requirement in your jurisdiction.
No Warranty: Products are sold “as is,” with no express or implied warranties regarding efficacy, safety, or suitability. Results in research may vary. QSC is not responsible for outcomes, interpretations, or conclusions drawn from any studies conducted using these products.
🧪

General Safety & Handling

🚫

Not for Human Use

These compounds are for research only. Any off-label, personal, or clinical use is strictly outside the intended scope of supply.

🥽

PPE Required

Always use appropriate personal protective equipment (gloves, lab coat, eye protection) when handling peptides.

🌡️

Storage Compliance

Follow product-specific storage conditions to maintain identity, purity, and biological activity.

🗑️

Proper Disposal

Dispose of all materials in accordance with institutional biosafety, chemical waste, and hazardous material protocols.

🧾

Verify Quality

Janoshik COAs are available on every product page. Verify batch identity (MS confirmed) and purity (≥99% HPLC) before use.

❄️

Peptide Storage Guidelines

🌑 Light-protected💧 Low moisture🌡️ Stable temperature🔬 Sterile handling

DSIP 15mg | 20-Vial Kit | Slee...

$350

Epitalon 10mg | 20-Vial Kit | ...

$270

Peptides
Blends
Tablets
Search
Contact