IGF-1 LR3 — 1mg

IGF-1 LR3 is a modified, longer-lasting version of IGF-1 — one of the body’s most important growth and repair hormones. The “LR3” modification gives it a much longer active life in the body compared to standard IGF-1, and also stops it from being intercepted by the carrier proteins that normally limit how much IGF-1 reaches the target tissue. The result is a more powerful, longer-acting signal that works across the whole body — making it one of the most widely used IGF-1 variants in muscle, recovery, and metabolic research.

About IGF-1 LR3
Standard IGF-1 has a very short active window — it gets cleared quickly and much of it gets bound up by carrier proteins before it ever reaches muscle or tissue. IGF-1 LR3 solves both of those problems. Its modified structure extends its active life to around 20–30 hours compared to just minutes for standard IGF-1, and it bypasses the carrier proteins that would otherwise neutralise it. That means more of it reaches the target tissue, for longer — which is why it’s become the go-to IGF-1 variant for researchers studying systemic growth, muscle development, and metabolic function.

Key Benefits:
• Much longer active life — stays active for up to 20–30 hours vs. just minutes for standard IGF-1, making it far more practical for research protocols
• Bypasses carrier proteins — gets straight to the target tissue without being intercepted, so more of the compound does the work it’s supposed to
• Systemic growth signalling — works body-wide, studied for how it drives growth and repair across multiple tissue types simultaneously
• Muscle growth and development — one of the most studied compounds for understanding how muscle cells grow, multiply, and repair
• Fat metabolism — IGF-1 LR3 is studied for how it shifts the body toward using fat for fuel while supporting lean tissue development
• Recovery and repair — researched across musculoskeletal, connective tissue, and injury recovery models
• Cell growth and survival — studied for how it promotes cell proliferation and protects cells from breakdown
• Powerful comparator tool — its extended half-life and IGFBP resistance make it ideal for side-by-side studies with standard IGF-1 and IGF-1 DES

Research Focus Areas
• Systemic IGF-1 signalling and growth factor research
• Skeletal muscle growth and development models
• Fat metabolism and body composition studies
• Tissue repair and recovery biology
• Cell proliferation and survival research
• Comparative IGF-1 variant studies (vs. standard IGF-1 and IGF-1 DES)
• Metabolic health and insulin sensitivity models

Specifications
• Total content: 1mg
• Form: Lyophilised powder
• Purity: ≥99% — HPLC verified
• Storage: 2–8°C, away from light and moisture

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Important Notice

This product is supplied strictly for laboratory research use only. It is not intended for human or veterinary use.

By purchasing, the buyer confirms they are a qualified professional or acting on behalf of a licensed research facility and accept full responsibility for safe handling, storage, and use in accordance with all applicable guidelines. No claims are made regarding the safety or effectiveness of this compound outside of a controlled research environment.