Isovitexin is a C-glycosylflavone, specifically an apigenin-6-C-glucoside. It is a natural bioactive compound widely found in various medicinal plants, such as *Passiflora incarnata*, bamboo leaves, and *Crataegus* species. Its chemical structure features a flavone backbone with a glucose moiety attached at the C-6 position via a carbon-carbon bond, which confers stability against enzymatic hydrolysis. Extensive pharmacological research has identified isovitexin as a compound with significant therapeutic potential. Its primary applications are in the fields of medicine and nutraceuticals due to its diverse biological activities. Key reported effects include potent antioxidant, anti-inflammatory, neuroprotective, cardioprotective, and anti-diabetic properties. It is investigated as a potential active pharmaceutical ingredient (API) or a key phytochemical marker for herbal medicines targeting conditions like anxiety, neurodegenerative diseases, and metabolic disorders. As a natural product derivative, isovitexin serves as a crucial reference standard in the quality control of herbal extracts and traditional medicines. It is also a valuable tool compound in life science research for studying flavonoid metabolism and biological pathways related to oxidative stress and inflammation. Its safety profile is generally considered favorable, consistent with its natural origin and presence in common edible plants.