IGF-1 LR3 (Insulin-Like Growth Factor-1 Long R3) is a modified peptide variant of naturally occurring IGF-1, engineered to provide extended stability and longer activity duration compared to standard IGF-1. Due to these improvements, IGF-1 LR3 is frequently selected in advanced research studies involving cellular growth signaling, tissue development, metabolic pathways, and anabolic mechanisms.

At PurePeptix, we focus on quality-first peptide sourcing and product transparency—ensuring every research compound is packaged for stability, handling, and storage.

What is IGF-1 LR3?

IGF-1 is a naturally occurring growth factor found in the body that plays a key role in cell growth, repair, and nutrient utilization. IGF-1 LR3 is a modified version designed for enhanced binding properties and longer functional half-life, often used in research environments studying cellular signaling and growth factor behavior.

Researchers commonly explore IGF-1 LR3 in studies related to:

• Cell growth and differentiation

• Protein synthesis mechanisms

• Nutrient transport & glucose uptake pathways

• Tissue regeneration and recovery signaling

• Muscle cell signaling and anabolic activity

• IGF-1 receptor activity and downstream pathways

Why IGF-1 LR3 is Different from Standard IGF-1

IGF-1 LR3 contains modifications that improve research utility:

✅ Extended activity duration (longer half-life compared to IGF-1)
✅ Reduced binding to IGF Binding Proteins (IGFBPs)
✅ Enhanced cellular availability in research settings
✅ More consistent signaling profile for studies requiring longer activation windows

These properties make IGF-1 LR3 valuable for research teams investigating growth factor response over time.

Key Research Interest Areas

IGF-1 LR3 is a highly sought-after peptide in the research community due to its potential influence on:

1) Cellular Growth Signaling

Commonly studied in relation to cell proliferation, differentiation, and development pathways.

2) Metabolic & Nutrient Uptake

Researchers evaluate how IGF-1 LR3 interacts with nutrient transport and glucose uptake signaling.

3) Recovery, Repair & Regeneration

Used in investigations exploring cell recovery mechanisms, and repair pathways following stress or damage.

4) Anabolic Pathways and Muscle Growth Studies

Often chosen in research settings studying muscle cell hypertrophy signaling, protein-building pathways, and cellular repair mechanisms.

Quality Commitment – PurePeptix Standard

When purchasing research peptides, quality and handling standards matter. PurePeptix aims to deliver:

• High quality research-grade compounds

• Secure packaging for stability

• Clear labeling and safe handling standards

• Fast processing and reliable support

Storage & Handling Guidelines

To maintain peptide stability:

• Store in a cool, dry environment

• Recommended storage: -20°C (freezer) for long-term preservation

• Avoid repeated temperature exposure

• Keep vial sealed when not in use

Important Notice / Disclaimer

⚠️ IGF-1 LR3 is intended strictly for laboratory research and analytical purposes only.
Not for human consumption, medical use, injection, treatment, or diagnostic purposes.
Purchasing confirms acceptance of intended use compliance.