IGF-1 LR3 (Receptor Grade) 1mg – Purity HPLC ≥99%
 
IGF-1 LR3 (Receptor Grade), also known as Insulin-like Growth Factor 1 Long R3, is a highly purified synthetic peptide, specifically designed for advanced in vitro research applications.
Supplied at 1mg, this premium-grade reagent is engineered to maximize IGF-1 receptor activation, ensuring reliable, reproducible, and precise results in even the most demanding cellular studies.
The Receptor Grade IGF-1 LR3 differs significantly from Media Grade or standard recombinant IGF-1 due to its enhanced potency, receptor specificity, and consistent biological activity, making it the ideal choice for cutting-edge research applications.
 
🧬 Exceptional Biological Activity – Why Receptor Grade Matters
Receptor Grade IGF-1 LR3 is designed for maximum receptor activation, offering:
🔹 Up to 10x higher receptor binding affinity compared to conventional IGF-1
🔹 Robust activation of intracellular signaling pathways, including PI3K/Akt, MAPK, and mTOR [1][2]
🔹 Targeted modulation of IGF binding proteins (IGFBPs), maintaining peptide bioavailability and enhancing cellular response
🔹 Rapid and sustained stimulation of proliferation and differentiation processes
 
This high receptor specificity and potency ensures experiments that require precise IGF-1 signaling produce consistent, reliable, and scientifically meaningful results, crucial for publications or high-level research studies.
 
⚡ Key Research Applications & Advantages
Receptor Grade IGF-1 LR3 is the preferred choice for advanced research, where potency, precision, and reproducibility are critical:
 
Cell Proliferation and Stem Cell Expansion – Strongly stimulates the growth of myoblasts, fibroblasts, and stem cells, allowing researchers to explore proliferation mechanisms in detail [3].
Targeted Cell Differentiation – Promotes differentiation of muscle and neuronal cells, essential for studying IGF-1 pathways in tissue regeneration.
Cell Survival and Anti-Apoptosis – Protects cells from stress-induced apoptosis, making it highly relevant for oncology, regenerative medicine, and metabolic research [4].
Metabolic Regulation and Energy Signaling Studies – Enables investigation of IGF-1 effects on glucose metabolism, lipid homeostasis, and energy signaling pathways.
Protein Expression and Recombinant Production Optimization – Enhances protein yield in mammalian cell cultures, outperforming Media Grade IGF-1 or insulin in production systems.
Mechanistic and Therapeutic Research – Explores complex interactions between IGF-1, IGFBPs, and other growth factors, offering insights for novel therapeutic strategies.
 
💡 The Receptor Grade is particularly valuable for:
Sensitive or low-abundance cell populations
Dose-dependent signaling studies requiring precise modulation
Research demanding maximum receptor activation and consistent cellular responses
 
💎 Ultra-Pure Synthetic Peptide – Peptides-EU Guarantee
Our Receptor Grade IGF-1 LR3 is an ultra-pure peptide, validated by HPLC ≥99%, ensuring virtually no contaminants or impurities. This exceptional purity offers numerous advantages for research:
 
🔹 Reliable and reproducible results – every in vitro experiment is conducted under optimal conditions
🔹 Enhanced biological stability – retains structural integrity and activity even after prolonged storage or handling
🔹 Optimized cellular performance – ideal for proliferation, differentiation, and signaling studies
🔹 Advanced application reliability – suitable for sensitive cell cultures, recombinant protein production, and precise IGF analyses
🔹 Scientific confidence – minimizes experimental errors, ensuring solid, reproducible conclusions
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✅ Buy with Confidence – Peptides-EU Guarantee
Purchasing from Peptides-EU provides:
🔹 Ultra-pure Receptor Grade peptide, verified by HPLC
🔹 Reliable, reproducible results for advanced research
🔹 Full support for premium research applications, compliant with European laboratory standards
 
Working with Peptides-EU means investing in scientific quality, reliability, and experimental excellence, supported by secure, professional service.
 
⚠️ Research Use Only – Not for Human Consumption
Strictly intended for laboratory research use
Not approved for human or veterinary use
For qualified professionals only, following proper handling and safety procedures
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📚 References
Jones, J.I., & Clemmons, D.R. (1995). Insulin-like growth factors and their binding proteins: biological actions. Endocrine Reviews, 16(1), 3–34.
LeRoith, D., & Roberts, C.T. (2003). The insulin-like growth factor system and cancer. Cancer Letters, 195(2), 127–137.
Florini, J.R., Ewton, D.Z., & Coolican, S.A. (1996). Growth hormone and the insulin-like growth factor system in myogenesis. Endocrine Reviews, 17(5), 481–517.
Clemmons, D.R. (2001). IGF-binding proteins and their regulation of IGF actions. Growth Hormone & IGF Research, 11(3), 1–12.
 
💪 IGF-1 LR3 (Receptor Grade) 1mg is a premium research tool, designed for scientists seeking:
Maximum IGF-1 receptor activation
Precise modulation of cellular responses
Advanced insights into cell signaling and tissue regeneration
Its ultra-high purity and Peptides-EU guarantee make it the preferred choice for advanced in vitro studies and preclinical research, delivering reliability, performance, and scientific confidence.