The IGF-I/IGF-1 protein is structurally similar to insulin and has potent growth-promoting activity. As a physiological regulator, it stimulates glucose transport and glycogen synthesis in osteoblasts, exceeding the efficacy of insulin at lower concentrations. Animal-Free IGF-I/IGF-1 Protein, Mouse (His) is the recombinant mouse-derived animal-FreeIGF-I/IGF-1 protein, expressed by E. coli , with C-His labeled tag.This product is for cell culture use only.