Chrysin is a naturally occurring flavonoid compound with the chemical name 5,7-dihydroxyflavone and the molecular formula C₁₅H₁₀O₄. It is primarily sourced from plants such as propolis, passionflower, and Lagerstroemia speciosa, and is one of the key active components in propolis. It appears as a light yellow crystalline powder, slightly soluble in water but readily soluble in organic solvents. Although widely distributed in nature, its content is generally low. Modern production mainly relies on plant extraction or chemical synthesis. Due to its unique flavonoid structure, chrysin exhibits multiple biological activities and has become a focal point in natural product research and functional ingredient development in recent years, showing significant potential in pharmaceuticals and health products.

Chrysin demonstrates a broad range of biological activities:

*Note: Its oral bioavailability is relatively low, often requiring formulation optimization to enhance effectiveness.

Chrysin is primarily applied in various commercial and scientific fields:

Despite its wide applications, its utility is limited by bioavailability. Current research focuses on developing novel delivery systems, such as nano-formulations, to enhance its efficacy.