The Anionic Surfactants segmentation is driven primarily by four application clusters. In the detergent & cleaning segment, linear alkylbenzene sulfonates (LAS) and sodium lauryl sulfate (SLS) dominate, accounting for the bulk of volume because of their high foaming power and cost efficiency. Personal‑care formulations rely on milder anionic agents such as alpha‑olefin sulfonates (AOS) and sodium cocoyl isethionate, which balance skin compatibility with cleansing performance. Industrial processes—including metalworking fluids and textile pretreatment—use high‑ionic‑strength variants like sodium alkyl ether sulfates for their superior wetting and emulsification. Finally, niche uses in oil & gas (e.g., demulsifiers) and agricultural (e.g., pesticide spreaders) employ specialized sulfonates engineered for extreme pH or salinity. Collectively, these applications shape the overall market size, with detergent & cleaning contributing the largest share, followed by personal care, industrial, and the two niche segments.