IGF-1 LR3 (Receptor Grade) 1mg

IGF-1 LR3 (Receptor Grade) 1mg from West Lab Chemical is a long-acting, recombinant analog of Insulin-Like Growth Factor-1 (IGF-1) designed for advanced cellular growth, muscle development, and tissue regeneration research.

With a modified amino acid sequence that extends biological activity and reduces binding to IGF-binding proteins (IGFBPs), IGF-1 LR3 exhibits enhanced stability, potency, and receptor affinity, making it a preferred peptide for growth and metabolic research applications.

For Laboratory Research Use Only. Not for Human or Veterinary Use.

Packaging: 1mg Vial
Purity: ≥ 98% (HPLC Verified)
Molecular Formula: C400H625N111O115S9
Molecular Weight: ~9,115 Da
Grade: Receptor / Research Grade

What is IGF-1 LR3?

IGF-1 LR3 (Long Arg3 IGF-1) is a synthetic derivative of human insulin-like growth factor 1 (IGF-1) that features a 13-amino-acid extension at the N-terminus and a substitution of arginine at position 3.

These modifications:

• Reduce affinity to IGFBPs (increasing free IGF-1 levels)

• Enhance biological half-life from ~20 minutes to >20 hours

• Enable sustained receptor activation for extended research modeling

Key Features

• 💎 Receptor Grade Purity (≥98%) verified via HPLC & Mass Spectrometry

• 🧬 Modified analog of human IGF-1 for extended activity

• ⚗️ Enhanced receptor binding with reduced IGFBP interference

• 🌡️ Stable lyophilized form for long-term research storage

• 🔬 Ideal for cellular proliferation and muscle growth studies

Mechanism of Action

IGF-1 LR3 functions by binding to the IGF-1 receptor (IGF1R), stimulating the PI3K-AKT-mTOR signaling pathway, a critical regulator of cellular growth, survival, and protein synthesis.

Its modified structure allows it to circulate freely in the system without rapid deactivation by IGFBPs, resulting in stronger and longer-lasting receptor activation.

In research models, IGF-1 LR3 promotes:

• Enhanced protein synthesis

• Cell differentiation and regeneration

• Tissue and muscle growth simulation

Research Applications

(For laboratory use only. Not for human or animal administration.)

• Muscle cell hypertrophy and regeneration research

• Tissue healing and collagen synthesis studies

• Cell proliferation and differentiation modeling

• IGF-1 receptor pharmacodynamics

• Anti-aging and longevity pathway investigations

Specifications

Storage & Handling

• Store at 2–8°C (refrigerated).

• Protect from light and moisture.

• Reconstitute with sterile or bacteriostatic water for research solutions.

• Avoid multiple freeze-thaw cycles to maintain peptide stability.

Why Choose West Lab Chemical

At West Lab Chemical, we specialize in high-purity peptides, SARMs, and growth factors for scientific and medical research.
Every vial undergoes rigorous analytical testing to ensure consistency, stability, and potency.

Our Quality Promise:

• ≥98% HPLC & MS purity

• Manufactured in GMP-compliant laboratories

• Temperature-controlled international shipping

• COA, MSDS & analytical report available for all batches

• Trusted globally by academic, pharmaceutical, and biotech researchers

🔬 Purity. Consistency. Precision. — That’s the West Lab Chemical standard.

Purity Verification

Legal Disclaimer

This material is supplied for research and laboratory purposes only.
Not for human consumption or medical use.
All handling and storage must comply with institutional biosafety protocols.