Prime Growth LR3

IGF-1 LR3 (Insulin-Like Growth Factor-1 Long R3)

Molecular Formula

C₄₀₀H₆₂₅N₁₁₁O₁₁₅S₉

IGF-1 LR3 is a synthetic 83–amino acid peptide analog of insulin-like growth factor-1 (IGF-1), engineered for enhanced stability, reduced binding to IGF-binding proteins, and significantly prolonged biological activity.

Product Overview

IGF-1 LR3 is a long-acting growth factor peptide designed to support cellular repair, protein synthesis, and metabolic efficiency. Its extended half-life (approximately 20–30 hours) allows for sustained receptor activation and prolonged anabolic signaling compared to native IGF-1.

Key Benefits

1. Enhanced Muscle Growth & Protein Synthesis

• Promotes muscle cell proliferation and development

• Increases protein synthesis and nitrogen retention

• Supports lean muscle mass and strength gains

1. Accelerated Recovery & Tissue Repair

• Speeds recovery from intense training and injury

• Supports regeneration of muscle, tendon, and connective tissue

• Reduces inflammation and muscle soreness

1. Improved Body Composition

• Enhances fat metabolism and nutrient partitioning

• Supports reduction in body fat while preserving lean tissue

• Promotes efficient energy utilization

1. Cellular Growth & Regeneration

• Activates IGF-1 receptors to stimulate cell growth and repair pathways

• Supports overall tissue regeneration and recovery processes

1. Cognitive & Neurological Support

• May support memory, focus, and cognitive performance

• Promotes neuronal survival and synaptic function

1. Performance & Endurance Optimization

• Enhances strength, stamina, and training capacity

•  Supports faster adaptation to physical stress and workload

Mechanism of Action

IGF-1 LR3 binds to IGF-1 receptors on muscle and other tissues, activating intracellular signaling pathways responsible for cell proliferation, protein synthesis, and metabolic regulation. Its modified structure reduces binding to inhibitory proteins, allowing for greater bioavailability and potency.