The Application segment of the Peroxyethanoic Acid market is partitioned into five principal end‑use categories: pharmaceuticals, cosmetics, industrial cleaning, water treatment, and food processing. In the pharmaceutical arena, the acid functions as an oxidizing intermediate for active‑ingredient synthesis, accounting for roughly 30 % of total revenue due to high‑value specialty chemicals and stringent regulatory demand. The cosmetics sector, representing about 25 % of sales, leverages the compound’s bleaching and antimicrobial properties in hair‑care and skin‑care formulations, where premium pricing offsets modest volume. Industrial cleaning consumes 20 % of the market, driven by the acid’s efficacy in metal surface preparation and equipment descaling, where large‑scale contracts dominate. Water‑treatment applications, contributing 15 %, employ the acid for advanced oxidation processes that remove persistent organic pollutants, a niche but growing segment aligned with tightening environmental standards. Finally, food processing, at 10 %, uses the acid for sterilization and enzymatic deactivation, a lower‑margin but regulated market. This Peroxyethanoic Acid segmentation by application clarifies the relative weight of each category within the overall market size.