IGF-1 LR3
10,000 ฿ · 1,000 mcg
What it is
Insulin-like Growth Factor 1 (IGF-1) is a 70-amino-acid peptide hormone produced primarily by the liver in response to growth hormone signaling. It mediates many of the anabolic and growth-related effects attributed to HGH itself.
The LR3 variant (“Long Arg3 IGF-1”) is a synthetic analog with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. These modifications dramatically reduce its binding to IGF binding proteins, extending its circulating half-life compared to native IGF-1.
What it’s studied for
Originally developed as a research tool, IGF-1 LR3 is used in cell culture and animal studies of growth, muscle hypertrophy, glucose metabolism, and tissue repair.
Sold as a research-purpose product. Dosing protocols are outside the scope of this catalog — for human-use or medical questions, please consult a physician.