IGF-1 LR3

Insulin-like Growth Factor-1 Long R3

A long-acting analog of IGF-1 with enhanced receptor binding and extended half-life for anabolic and recovery effects.

Molecular Weight

9117.5 Da

Half-Life

~20 hours

Typical Dose

20–100 mcg

Cycle Length

4–6 weeks (with breaks)

Description

IGF-1 LR3 is a recombinant analog of insulin-like growth factor-1 with an arginine substitution at position 3 and an N-terminal 13 amino acid extension. These modifications reduce binding to IGF-binding proteins, extending its half-life from ~12 minutes to ~20 hours and enhancing its biological activity.

Key Characteristics

Molecular FormulaC400H625N111O115S9

Molecular Weight9117.5 Da

Half-Life~20 hours

Administration RoutesSubcutaneous injection, Intramuscular injection

Typical Dose20–100 mcg

FrequencyDaily or every other day

Investigated Benefits

Enhanced muscle protein synthesis

Accelerated muscle recovery

Improved body composition

Anti-aging effects

Neuroprotection

* Benefits based on preclinical/animal research unless otherwise noted.

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