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IGF-1 LR3, also known as Insulin-like Growth Factor-1 Long R3, is a synthetic peptide hormone that is similar in structure and function to insulin. It is a modified version of the naturally occurring IGF-1 hormone, with an extended half-life.
IGF-1 LR3 works by binding to the IGF-1 receptor, which is present on the surface of many cell types in the body. This binding activates a series of signaling pathways that promote cell growth, proliferation, and differentiation. It plays a crucial role in regulating the growth and development of various tissues, including muscle, bone, and organs.
One of the key features of IGF-1 LR3 is its increased potency and duration of action compared to natural IGF-1. The modification of LR3 involves the replacement of the amino acid arginine with glutamic acid at position 3, which prevents it from binding to proteins in the bloodstream, thus allowing it to circulate for a longer period and exert its effects.
Due to its potent anabolic properties, IGF-1 LR3 is often used in research and bodybuilding communities to enhance muscle growth, improve recovery, and increase strength. However, it is important to note that the use of IGF-1 LR3 for performance enhancement purposes is considered illegal in many sports and may have potential health risks if used improperly.