Buy IGF-1 DES 1mg | High-Quality Truncated IGF-1 Des(1-3) Research Peptide For Sale | Fast Worldwide Shipping

IGF-1 DES 1mg is a high-quality, truncated synthetic analog of insulin-like growth factor-1 (IGF-1) — naturally occurring in human brain tissue and pig uterine tissue — engineered for laboratory research by removing the first three N-terminal amino acids of the parent molecule, producing a compact 67-amino acid peptide sequence spanning positions 4–70 (IGF-1 (4-70)). This single structural modification has profound research implications: unlike native IGF-1, IGF-1 DES cannot bind insulin-like growth factor binding proteins (IGFBPs) present in plasma and tissues, making it dramatically more bioavailable at IGF-1 receptors in experimental models. In vitro studies demonstrate that at equal doses, Des(1-3) IGF-1 is up to 10× more potent than IGF-1 at stimulating hypertrophy and cellular proliferation in cultured cells — a distinction that makes it one of the most studied truncated growth factor analogs in peptide research today.