Oral functional excipients are inactive substances engineered to enhance the performance, stability, and patient acceptability of oral dosage forms such as tablets, capsules, and powders. They play a critical role in modulating drug release, taste, solubility, and manufacturability, making them indispensable for modern pharmaceutical formulations. The Oral Functional Excipients market size was estimated at approximately USD 5.3 billion in 2025, and industry analysts project a robust growth outlook with a CAGR of around 6.5% through the market forecast period 2026‑2033, driven by expanding therapeutic pipelines and heightened demand for patient‑centric products. This market overview scopes the global landscape, encompassing solubilizers, taste‑masking agents, disintegrants, and glidants across pharmaceutical, nutraceutical, and consumer health segments.