The Application segment in isophane insulin injection segmentation is primarily divided into three categories: Type 1 Diabetes, Type 2 Diabetes, and Gestational Diabetes. Type 1 Diabetes constitutes the largest share, driven by the chronic nature of the condition requiring regular insulin supplementation. Type 2 Diabetes follows, characterized by insulin resistance and progressive beta-cell dysfunction, contributing significantly to the market due to rising obesity and aging populations. Gestational Diabetes, though smaller in volume, is a high-growth segment, influenced by increased pregnancy-related diabetes prevalence and the need for safe, regulated glucose control during pregnancy. Collectively, these applications define the market's therapeutic scope and revenue distribution.