IGF DES overview IGF DES (Insulin-like Growth Factor-1 Des (1-3)) peptide is a modified version of insulin-like growth factor-1 (IGF-1). It is generated by enzymatic cleavage of the IGF-1 protein and contains a deletion of the amino acids at positions 1-3. This modification results in a peptide with a shorter half-life and more localized actions in the body. It is known …