IGF-LR3 1mg

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

Growth hormone gets a lot of attention — but IGF-1 is where much of the real work happens. IGF-1 LR3 is an advanced synthetic analogue of insulin-like growth factor 1, engineered with a 13 amino acid N-terminal extension and an arginine substitution at position 3. These modifications reduce binding to IGF binding proteins, dramatically extending its half-life to 20–30 hours and allowing it to remain biologically active far longer than native IGF-1.

What Research Suggests IGF-1 LR3 May Support:

Lean Muscle Growth & Body Composition — By directly activating IGF-1 receptors in muscle tissue, research indicates IGF-1 LR3 promotes protein synthesis and nitrogen retention, supporting lean muscle development through both hyperplasia — the creation of new muscle cells — and mitogenesis, the development of new muscle fibres.

Fat Metabolism — Studies point to IGF-1 LR3’s ability to increase lipolysis and enhance glucose metabolism, encouraging the body to utilise stored fat for energy while supporting overall body recomposition.

Recovery & Tissue Repair — Research highlights its role in accelerating cellular repair and reducing recovery time following physical stress, with connective tissue, muscle, and joint health all identified as areas of interest.

Bone Density & Structural Health — Studies suggest IGF-1 LR3 stimulates bone growth and supports the integrity of connective tissue, making it a subject of growing research interest for long-term skeletal and joint health.

Cognitive Function & Neuroprotection — IGF-1 plays a critical role in neurogenesis and synaptic plasticity. Research indicates IGF-1 LR3 supports memory, cognitive processing, and neuronal survival — areas of particular interest given the natural decline of IGF-1 levels with age.

Healthy Ageing & Cellular Regeneration — By working directly at the receptor level rather than through the upstream GH axis, IGF-1 LR3 delivers sustained anabolic signalling that research associates with improved vitality, cellular repair, and protection against age-related decline.