**Pictures are magnified for illustration and are of one product and you will receive only one vial. Pictures are representative of the final product which may have variations in the cap color.
Product Description
Long arginine 3-IGF-1, abbreviated as IGF-1 LR3 or as LR3-IGF-1, is a synthetic protein and lengthened analogue of human insulin-like growth factor 1 (IGF-1). It differs from native IGF-1 because it has an arginine instead of a glutamic acid at the third position in its amino acid sequence (“arginine 3”), as well as an additional 13 amino acids at its N-terminus (MFPAMPLLSLFVN) (“long”). This gives it a total of 83 amino acids (relative to the 70 of IGF-1). This means that IGF-1 LR3 retains the pharmacological activity of IGF-1 as an agonist of the IGF-1 receptor, has very low affinity for the insulin-like growth factor-binding proteins (IGFBPs), and has improved metabolic stability.
*This description is meant for informational purposes only and is publicly available.