
IGF-1 LR3
IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is a synthetic, modified analogue of endogenous IGF-1 with an arginine substitution at position 3 and a 13-amino acid N-terminal extension. These modifications significantly reduce its binding to IGF-binding proteins (IGFBPs), resulting in a much longer half-life (20ā30 hours vs ~12minutes for native IGF-1). It signals primarily through the IGF-1 receptor (IGF-1R), activating the PI3K/Akt and MAPK/ERK pathways to drive muscle growth, fat metabolism, and cellular repair. It is one of the most potent anabolic and tissue-regenerating peptides available.
Choose your dosage
Purity: 99%
Form: Lyophilized Powder
Description
DEFINITION
IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is a synthetic, modified analogue of endogenous IGF-1 with an arginine substitution at position 3 and a 13-amino acid N-terminal extension. These modifications significantly reduce its binding to IGF-binding proteins (IGFBPs), resulting in a much longer half-life (20ā30 hours vs ~12minutes for native IGF-1). It signals primarily through the IGF-1 receptor (IGF-1R), activating the PI3K/Akt and MAPK/ERK pathways to drive muscle growth, fat metabolism, and cellular repair. It is one of the most potent anabolic and tissue-regenerating peptides available.
KEY BENEFITS
ā Potent anabolic effect ā stimulates muscle cell hyperplasia (new muscle cell formation) and hypertrophy
ā Enhances nutrient uptake into muscle cells, improving protein synthesis and recovery
ā Promotes fat oxidation by shifting the body toward using fat as a primary fuel source
ā Supports tissue repair and regeneration ā tendons, cartilage, and connective tissue
ā Extended half-life provides sustained IGF-1 receptor activation compared to native IGF-1
Available Quantities
1mg
All products are sold for research and laboratory use only.




