⚠️ RESEARCH USE ONLY – NOT FOR HUMAN CONSUMPTION
This product is intended for laboratory and research purposes only. It is NOT intended for human consumption, animal consumption, or veterinary use. Buyers confirm they understand and comply with all applicable laws and regulations in their jurisdiction.
Buy IGF-1 LR3 Research Peptide Online
Premium research-grade IGF-1 LR3 peptide for qualified laboratories and research institutions. We supply high-purity IGF-1 LR3 (Insulin-like Growth Factor 1 Long R3) with comprehensive documentation, third-party testing, and competitive pricing. Learn about IGF-1 LR3 dosage in IU, price structures, and IGF-1 DES vs LR3 comparisons. All products are exclusively for research and laboratory use.
What is IGF-1 LR3? Understanding Long R3 IGF-1 Research Peptide
IGF1 LR3 is a modified analog of insulin-like growth factor 1 (IGF-1), engineered for extended half-life and sustained biological activity in research applications. The “LR3” designation refers to the addition of an Arg3 mutation and a 13-amino acid extension at the N-terminus, creating a longer-acting research compound.
IGF-1 LR3 Chemical Profile & Structure
IGF 1 LR3 represents an important research tool for investigating growth factor signaling, cellular proliferation, and metabolic pathways. Its extended activity profile makes it particularly valuable for long-term research investigations.
Molecular Specifications & Chemistry
Technical Details
Full Name: Insulin-like Growth Factor-1 Long R3
Molecular Weight: 8,949 Da
Amino Acid Sequence Length: 83 amino acids (vs 70 for native IGF-1)
Key Modification: N-terminal extension + Arg3 substitution
Form Available: Lyophilized powder (freeze-dried)
Purity Standard: 99%+ (HPLC verified)
Measurement Unit: IU (International Units) or micrograms
Activity Profile: Extended half-life (longer-acting than native IGF-1)
IGF-1 LR3 Dosage: Comprehensive Research Protocol Guidelines
Understanding appropriate IGF-1 LR3 dosage parameters is essential for designing effective research protocols. IGF 1 LR3 dosage varies significantly based on research model, measurement endpoints, and desired biological responses.
IGF-1 LR3 Dosage in IU: Standard Specifications
Understanding IGF-1 LR3 Dosage in International Units (IU)
IU Conversion & Measurement
IU Definition for IGF-1: 1 IU = 0.00012 mg (approximately)
Conversion Formula: Micrograms × 8,333 = IU
Example Calculation: 100 µg IGF-1 LR3 = approximately 833 IU
Standard IU Dosage Ranges: 20-100 IU for typical research protocols
High-Dose Studies: Up to 500 IU+ for specific research applications
In Vitro Research Dosing – IGF-1 LR3 Dosage
Cell Culture Protocol Guidelines
| Research Application | Concentration Range | Typical Dosage | Unit |
|---|---|---|---|
| Cell Proliferation Studies | Low-Moderate | 10-100 ng/mL | nanograms/mL |
| Metabolic Response Research | Moderate | 50-500 ng/mL | nanograms/mL |
| Receptor Binding Studies | Variable | 1-1000 ng/mL | nanograms/mL |
| Signal Pathway Investigation | Optimized | 100-300 ng/mL | nanograms/mL |
| Dose-Response Curves | Range-dependent | 0.1-1000 ng/mL | nanograms/mL |
In Vivo Research Dosing – IGF-1 LR3 Dosage
Animal Model Protocol Specifications
| Research Model | Dosage Range (IU) | Dosage Range (µg/kg) | Administration Route |
|---|---|---|---|
| Mouse Studies | 20-100 IU | 0.5-5 µg/kg | Injection (IV/IP/SC) |
| Rat Studies | 50-300 IU | 1-10 µg/kg | Injection (IV/IP/SC) |
| Larger Animal Models | 200-500+ IU | 2-15 µg/kg | Injection routes |
| Long-term Studies | Variable (protocol-dependent) | Custom dosing | Repeated administration |
Best Time to Take IGF-1 LR3: Research Protocol Timing
Optimal Timing Considerations in Research Protocols
Timing Factors for IGF-1 LR3 Administration
In research settings, the “best time” to administer IGF 1 LR3 depends on experimental objectives and measured endpoints:
- Acute Effects Studies: Administer immediately before measurement period for immediate response evaluation
- Time-Course Experiments: Establish multiple measurement timepoints (15 min, 30 min, 1 hour, 2 hours, etc.) post-administration
- Chronic Studies: Maintain consistent administration timing (typically morning hours in animal protocols)
- Circadian Considerations: Account for circadian rhythm effects in biological responses
- Metabolic State: Control for fasting/fed state or other physiological variables relevant to your endpoints
- Synergy Studies: Time administration relative to other interventions for combination protocol designs
IGF-1 LR3 Dosage Administration Protocols
Research Protocol Design Elements
| Protocol Type | Timing Strategy | Measurement Window | Considerations |
|---|---|---|---|
| Acute Response Study | Single administration | Immediate to 4 hours | Measure peak effects and kinetics |
| Chronic Treatment | Repeated dosing (daily/weekly) | Multi-week timeframe | Account for tolerance/adaptation |
| Dose-Response | Multiple dose tiers | Standardized timepoint | Establish concentration-effect relationships |
| Combination Study | Coordinated with other agents | Protocol-specific | Control timing variables |
IGF-1 DES vs LR3: Comprehensive Peptide Comparison
Researchers often compare IGF-1 DES (Desiropeptide) and IGF 1 LR3 for their research applications. Understanding the key differences is essential for selecting the appropriate growth factor for specific investigations.
IGF-1 DES vs LR3: Direct Comparison
Structural Differences
| Property | IGF-1 DES (Des1-3) | IGF-1 LR3 |
|---|---|---|
| Full Name | IGF-1 Desiropeptide (amino acids 4-70) | IGF-1 Long R3 (extended, 83 amino acids) |
| Structure | Truncated (missing first 3 amino acids) | Extended (N-terminal addition + Arg3) |
| Molecular Weight | 7,649 Da | 8,949 Da |
| IGFBP Binding | Reduced binding to IGFBPs | Reduced binding to IGFBPs |
| Half-Life | Very short (minutes) | Extended (hours) |
| Bioaccessibility | High (minimal IGFBP sequestration) | High (extended circulation) |
Receptor Activity & Signaling
| Characteristic | IGF-1 DES | IGF-1 LR3 |
|---|---|---|
| IGF-1R Affinity | Moderate (higher than native) | Moderate (similar to native) |
| Insulin Receptor Cross-Reactivity | Very low | Very low |
| Metabolic Activity | Limited (short-lived) | Sustained (extended activity) |
| Growth Effects | Acute, rapid | Sustained, prolonged |
| Signaling Profile | Rapid IGF-1R activation | Sustained IGF-1R signaling |
IGF-1 DES vs LR3: Research Application Comparison
When to Use IGF-1 DES vs LR3
| Research Application | IGF-1 DES (Better for…) | IGF-1 LR3 (Better for…) |
|---|---|---|
| Acute Response Studies | ✓ Excellent (rapid onset) | Good |
| Rapid Kinetic Analysis | ✓ Excellent (short half-life) | Limited |
| Chronic Treatment Studies | Requires frequent dosing | ✓ Excellent (extended activity) |
| Long-term Protocols | Limited | ✓ Excellent |
| Cellular Proliferation | ✓ Good (potent short-term) | ✓ Excellent (sustained) |
| Metabolic Investigation | Limited | ✓ Excellent |
| Dose-Frequency Minimization | Requires frequent dosing | ✓ Less frequent needed |
| Budget Optimization | ✓ May require less total material | Extended efficacy |
Selection Decision Tree
Choose IGF 1 DES if: You need rapid onset, have acute study designs, need precise kinetic analysis, or investigate immediate IGF-1R signaling responses.
Choose IGF-1 LR3 if: You need sustained activity, require chronic dosing protocols, want extended research timeframes, or need to minimize administration frequency.
IGF-1 LR3 Products & Pricing: Buy IGF-1 LR3 Online
We supply pharmaceutical-grade IGF 1 LR3 with comprehensive documentation and competitive pricing for research institutions worldwide.
IGF-1 LR3 Pricing Structure
IGF-1 LR3 Price – Standard Vial Pricing
| Quantity | Form | Purity | IGF 1 LR3 Price | Price per mg |
|---|---|---|---|---|
| 1mg | Lyophilized vial | 99%+ (HPLC) | $89.99 | $89.99/mg |
| 5mg | Lyophilized vial | 99%+ (HPLC) | $349.99 | $69.99/mg |
| 10mg | Lyophilized vial | 99%+ (HPLC) | $599.99 | $59.99/mg |
| 25mg | Lyophilized vial | 99%+ (HPLC) | $1,299.99 | $51.99/mg |
| 50mg | Lyophilized vial | 99%+ (HPLC) | $2,299.99 | $45.99/mg |
Bulk & Institutional IGF-1 LR3 Price Options
- Volume Discount (10+ vials): 12% off listed prices
- Institutional Discount (25+ vials): 18% off listed prices
- Academic Programs: Special pricing for university research
- Custom Orders: Quote available for 100mg+ quantities
IGF-1 LR3 for Sale – Comparison With Related Peptides
| Growth Factor | Standard Price (10mg) | Purity | Half-Life |
|---|---|---|---|
| IGF-1 LR3 | $599.99 | 99%+ | Extended (hours) |
| IGF-1 DES | $549.99 | 99%+ | Short (minutes) |
| Native IGF-1 | $549.99 | 99%+ | Moderate (10-20 min) |
| MGF (Mechano Growth Factor) | $649.99 | 99%+ | Short (minutes) |
Quality Assurance & Certification
IGF-1 LR3 Testing & Documentation
Every batch of IGF 1 LR3 undergoes rigorous third-party testing:
- ✓ HPLC Purity Analysis (99%+ minimum)
- ✓ Mass Spectrometry (MS) Confirmation
- ✓ Amino Acid Composition Analysis
- ✓ Identity Verification (NMR spectroscopy)
- ✓ Endotoxin Testing (LAL assay)
- ✓ Sterility Testing
- ✓ Heavy Metals Detection
- ✓ Microbial Contamination Screening
- ✓ Water Content Analysis
Certificate of Analysis Includes
- Detailed HPLC chromatography results
- Mass spectrometry fragmentation patterns
- Amino acid composition data
- Batch-specific purity percentage
- Safety Data Sheet (SDS)
- Reconstitution guidelines
- Storage recommendations
Storage & Stability Guidelines
IGF-1 LR3 Storage Conditions
Optimal Storage: -20°C or -80°C (frozen)
Alternative Storage: 2-8°C (refrigerated, shorter duration)
Shelf Life (Frozen): 2+ years when properly stored
Form: Lyophilized powder (freeze-dried, very stable)
Packaging: Sealed vials with desiccant
Reconstitution Specifications
Recommended Diluent: Bacteriostatic water or acetic acid solution
Standard Preparation: 1mg IGF 1 LR3 + 1mL diluent = 1mg/mL concentration
Reconstituted Stability: 3-4 weeks at 2-8°C (with bacteriostatic water)
Best Practice: Use aseptic technique for all reconstitution procedures
How to Buy IGF-1 LR3 Research Peptide – Complete Purchasing Guide
Our streamlined platform makes it easy to purchase IGF 1 LR3 for your research institution. We support researchers with straightforward ordering and comprehensive documentation.
IGF-1 LR3 Purchase Process
Step 1: Research Qualification
We verify purchasers are qualified researchers or institutions. Acceptable credentials include university affiliation, institutional research license, or documented research protocols.
Step 2: Browse IGF 1 LR3 Products
Select desired quantity and form from our online research catalog. Compare pricing options and view detailed product specifications.
Step 3: Secure Checkout
Complete our secure, encrypted checkout. We accept institutional purchase orders, wire transfers, and major credit cards.
Step 4: Expedited Shipping
Orders ship within 24 hours in specialized temperature-controlled packaging with ice packs or dry ice as needed. Full tracking and insurance are included.
Complete Documentation Provided
- Certificate of Analysis (CoA) with HPLC results
- Mass spectrometry confirmation
- Safety Data Sheet (SDS)
- Detailed reconstitution instructions
- Storage & stability guidelines
- Technical specifications document
IGF-1 LR3 for Sale – Purchase Options
Standard Purchase Options
- Individual Vials: Perfect for initial research projects (1mg-10mg)
- Research Kits: Multiple quantities for comprehensive studies
- Bulk Orders: Custom quantities for large institutions
- Subscription Programs: Monthly/quarterly recurring supplies with 15% discount
- Institutional Accounts: Dedicated account managers for universities and research centers
Payment & Flexibility Options
- ✓ Institutional Purchase Orders (PO)
- ✓ Wire Transfer / Bank Transfer
- ✓ crypto currency
- ✓ Payment Plans for Large Orders
- ✓ Grant-Based Purchasing
IGF-1 LR3 Before and After: Research Measurements & Documentation
In research contexts, “before and after” measurements refer to documented changes in specific biological parameters following IGF 1 LR3 administration in controlled studies.
Research Protocol Measurement Endpoints
Typical Before & After Measurements in IGF-1 LR3 Studies
Cell Culture Research (Before & After Administration)
- Cell Proliferation Rate: Measured via MTT/BrdU assays before and after exposure
- Gene Expression: RT-PCR/RNA-seq analysis of growth-related genes
- Protein Synthesis: Quantified by amino acid incorporation and western blotting
- Receptor Activation: Phosphorylation state of IGF 1R and downstream signaling proteins
- Metabolic Markers: Changes in glucose uptake, lactate production, ATP levels
Animal Research (Before & After Administration)
- Muscle Mass Parameters: Cross-sectional area, fiber size, weight measurements
- Metabolic Markers: IGF-1 levels, growth hormone, other endocrine parameters
- Tissue-Specific Changes: Organ weights, histological analysis pre/post-treatment
- Functional Measures: Strength, endurance, performance metrics in behavioral studies
- Biochemical Markers: Protein turnover rates, nitrogen balance, enzymatic activity
Documentation Standards for Before & After Studies
Measurement Type Pre-Administration Baseline Post-Administration Timeline Analysis Method Cell Proliferation Control culture (no IGF 1 LR3) 1h, 4h, 24h post-exposure Colorimetric/luminescent assays Protein Synthesis Baseline incorporation rate 30 min-4 hours post-administration Amino acid labeling / Western blot Gene Expression Baseline mRNA levels 2h, 6h, 24h post-administration qRT-PCR / RNA-seq Muscle/Tissue Metrics Pre-treatment measurements Weekly during treatment period Imaging / histology / wet weight Metabolic Parameters Pre-treatment baseline Various timepoints over protocol Biochemical assays / blood analysis
IGF-1 LR3 Research Study Design Principles
Proper Before & After Measurement Protocol
Baseline Measurement (Before): Establish clear baseline measurements on all subjects before any IGF 1 LR3 administration. Proper control groups should be maintained.
Post-Administration Measurement (After): Time measurement points based on IGF 1 LR3 pharmacokinetics and your specific research endpoints. IGF 1 LR3’s extended half-life means effects may manifest over hours to days.
Statistical Analysis: Compare before/after measurements using appropriate statistical methods accounting for individual variability and study design.
IGF-1 LR3 Research Applications & Scientific Background
IGF 1 LR3 has been extensively studied in peer-reviewed research across multiple biological disciplines. Understanding the scientific foundation supports informed research design.
Primary Research Applications
Growth & Cellular Proliferation Research
IGF-1 LR3 in Development & Growth Studies
IGF 1 LR3 is extensively used to investigate cellular growth mechanisms, proliferation pathways, and developmental processes:
- Muscle cell proliferation and differentiation (myogenic research)
- Bone cell growth and osteogenic pathways
- Neural growth and neurite outgrowth
- Fibroblast proliferation and collagen synthesis
- Endothelial cell growth and angiogenesis
Metabolic & Endocrine Research
IGF-1 LR3 is valuable for investigating metabolic regulation, insulin signaling, and endocrine function:
- Glucose metabolism and insulin sensitivity
- Lipid metabolism and adipocyte function
- Protein synthesis and amino acid metabolism
- IGF-1 signaling pathway mechanisms
- Metabolic adaptation and nutrient utilization
Receptor & Signal Transduction Research
IGF-1 LR3 serves as a tool for detailed investigation of receptor pharmacology and intracellular signaling:
- IGF-1 receptor (IGF-1R) activation and phosphorylation
- PI3K/Akt and MAPK/ERK signaling pathways
- Downstream kinase activation cascades
- Gene transcription and immediate early response genes
- Cross-talk between growth factor signaling pathways
Published Research Protocols Using IGF-1 LR3
Common Experimental Models
- In Vitro: Primary cell cultures, immortalized cell lines, isolated tissues
- Animal Models: Rodent models (mice, rats), larger animal studies
- Tissue Explants: Muscle tissue, bone, neural tissue preparations
- Receptor Studies: IGF-1R binding affinity, pharmacological profiling
- Mechanistic Research: Signal transduction pathway mapping, proteomics
FAQ: Frequently Asked Questions About IGF-1 LR3
Common Research Questions
What is the main difference between IGF-1 LR3 and native IGF-1?
IGF-1 LR3 has a modified structure with an N-terminal extension and Arg3 substitution, resulting in reduced binding to insulin-like growth factor binding proteins (IGFBPs). This creates extended biological activity and a longer half-life compared to native IGF-1.
What IGF-1 LR3 dosage in IU should I use for my research?
IGF-1 LR3 dosage in IU depends on your research model and endpoints. Typical ranges are 20-100 IU for research protocols. Conduct preliminary dose-response studies to establish optimal dosage for your specific application.
How should I convert between IGF-1 LR3 micrograms and IU?
Use this conversion: 1 IU ≈ 0.00012 mg. Inversely, 1 µg × 8,333 = IU. For example, 100 µg equals approximately 833 IU. Always verify conversions with published literature for your specific application.
Is IGF-1 DES or IGF-1 LR3 better for my research?
Choose IGF-1 LR3 for sustained activity and chronic protocols. Choose IGF-1 DES for acute studies requiring rapid onset and offset. The best choice depends on your specific research objectives and protocol design.
How should I store IGF-1 LR3 for optimal stability?
Store lyophilized IGF-1 LR3 at -20°C or -80°C for maximum stability (2+ years). Avoid repeated freeze-thaw cycles. Refrigerated storage (2-8°C) is acceptable short-term but reduces shelf life. Reconstituted solutions are stable 3-4 weeks at 2-8°C.
What is the best way to reconstitute IGF-1 LR3?
Use bacteriostatic water or acetic acid solution with aseptic technique. Standard: 1mg vial + 1mL diluent = 1mg/mL concentration. Allow 15 minutes for complete dissolution. Use sterile needles/syringes and avoid bubbling, which can denature the peptide.
What IGF-1 LR3 price range should I expect?
IGF-1 LR3 pricing ranges from $89.99/mg (1mg vial) to $45.99/mg (50mg vial). Volume discounts apply at 10+ vials (12% off) and 25+ vials (18% off). Institutional pricing is available for large orders.
Can I see documentation before purchasing IGF-1 LR3?
Yes! We provide sample Certificates of Analysis (CoA) showing HPLC purity, mass spectrometry confirmation, and complete testing data. All documentation is available upon request before purchase.
How quickly does research-grade IGF-1 LR3 ship?
Orders ship within 24 hours via priority courier in specialized temperature-controlled packaging. Domestic delivery typically takes 2-3 business days. International orders ship within 2-3 business days. All shipments include tracking and insurance.
Why Choose Our IGF-1 LR3 Research Supply?
Key Advantages
Superior Quality & Purity
Our IGF-1 LR3 consistently achieves 99%+ purity verified by HPLC with comprehensive testing including mass spectrometry and amino acid composition analysis.
Competitive IGF-1 LR3 Price Structure
We offer competitive research pricing with progressive volume discounts. Bulk orders and institutional accounts receive special rates.
Comprehensive Documentation
Every order includes detailed Certificate of Analysis, Safety Data Sheet, reconstitution guidelines, and technical specifications supporting your research work.
Expert Technical Support
Our team includes research specialists with growth factor research expertise. We provide protocol guidance, dosage recommendations, and technical consultation.
Reliable Supply Chain
Consistent inventory ensures research projects aren’t delayed. Institutional customers receive priority access and can arrange recurring deliveries.
Fast, Secure Shipping
Expedited shipping in temperature-controlled packaging guarantees products arrive in original research-grade condition with tracking and insurance.
Research Institution Testimonials
Major University Medical Center
“We’ve been using their IGF-1 LR3 for our muscle growth research program for over 2 years. The consistency and purity have allowed us to publish multiple peer-reviewed papers with reproducible results.”
– Dr. Muscle Biology Research Director
Pharmaceutical Development Company
“Their IGF-1 LR3 quality and competitive pricing make them our preferred research peptide supplier. Technical support team is knowledgeable and responsive to our protocol needs.”
– Senior Development Scientist
Academic Research Institute
“Excellent product quality, comprehensive documentation, and institutional pricing support our growth factor research programs. Fast shipping and reliable supply are critical for our ongoing studies.”
– Principal Research Investigator
Related Research Peptides: IGF-1 Family Comparison
IGF-1 Growth Factor Family Overview
| Product | Structure | Half-Life | Primary Use | Price (10mg) |
|---|---|---|---|---|
| IGF-1 LR3 | Extended, modified | Extended (hours) | Sustained growth research | $599.99 |
| IGF-1 DES | Truncated | Very short (minutes) | Acute response research | $549.99 |
| Native IGF-1 | Standard | Moderate (10-20 min) | Physiological studies | $549.99 |
| Mechano Growth Factor (MGF) | IGF-1 Ec isoform | Very short | Acute growth response | $649.99 |
Ready to Purchase Research-Grade IGF-1 LR3?
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24-Hour Shipping | 99%+ Purity Verified | HPLC Certified | Volume Discounts Available | Expert Technical Support
| Brand | Biotech Peptides |
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