Hypericum perforatum (St John's Wort) - Feed Ingredient

Hypericum perforatum, commonly known as St. John’s Wort, is a flowering plant native to Europe and parts of Asia. The aerial parts of the plant—particularly the flowers and leaves—are harvested and dried for use in herbal products.

In equine feed or supplements, Hypericum perforatum may be included for its bioactive constituents, including hypericin, hyperforin, and flavonoids. These compounds are associated with neurological or mood-modulating effects in herbal medicine, although such uses are not well-documented or officially approved in horses.