Segmentation by type classifies pharmaceutical‑grade polysorbates into four chemically distinct grades: Polysorbate 20, Polysorbate 40, Polysorbate 60, and Polysorbate 80. Polysorbate 80 holds the largest share, roughly 50% of the market, due to its optimal balance of hydrophilic‑lipophilic properties for stabilizing large‑molecule therapeutics and lipid‑based drug delivery systems. Polysorbate 20, comprising about 25%, is favored in aqueous formulations where lower viscosity is required, such as eye drops and inhalation solutions. Polysorbate 60 and Polysorbate 40 together represent the remaining 25%, with Polysorbate 60 (≈15%) preferred for high‑fat emulsions in parenteral nutrition, and Polysorbate 40 (≈10%) utilized in lower‑fat emulsions and certain oral dosage forms. Each type’s contribution to market volume is directly linked to its functional compatibility with specific dosage forms, regulatory acceptance, and cost structure, thereby shaping the overall market composition.