Application segmentation of the 1,2-Propylene Glycol market is driven by five primary end‑use categories: antifreeze/coolant, personal‑care, food‑and‑beverage, industrial‑solvent, and pharmaceutical formulations. The antifreeze/coolant segment, accounting for roughly 35 % of total demand, leverages the compound’s low freezing point and high boiling point to replace ethylene glycol in automotive and HVAC systems, thereby contributing the largest revenue share. Personal‑care applications—comprising moisturizers, deodorants, and hair‑care products—represent about 25 % of the market; the compound’s hygroscopic nature and solvent capability support formulation stability, driving steady growth. Food‑and‑beverage usage, primarily as a humectant and carrier in flavorings, contributes 20 % and is constrained by regulatory limits on purity. Industrial‑solvent uses, including inks, paints, and metal‑working fluids, occupy 15 % of demand, reflecting the chemical’s polarity and low toxicity. Pharmaceutical formulations, limited to 5 % of volume, rely on USP‑grade material for injectable and oral products. This 1,2‑Propylene Glycol segmentation illustrates the proportional impact of each application on overall market size.