St. John's Wort

Hypericum perforatum

St. John's wort

Other Names:

HPE, Spotted St. John’s Wort, Hypericum, Klamath Weed, Goat Weed, Touch-and-heal, Rosin Rose


  • Antiviral
  • Antitumor
  • Antibacterial
  • Wound-healing
  • Anti-inflammatory
St. John's wort (SJW)(Hypericum perforatum) is a medicinal herb which contains hypericin, the major neuroactive component of the plant. It has been used as a herbal remedy for a number of conditions since the ancient Greeks. Specific applications studied in poultry include:
  • Immune enhancement and Antiviral: St. John's wort extract (HPE) has demonstrated significant therapeutic efficacy and improvement of immunologic functions for chickens infected experimentally with infectious bursal disease virus.
  • Wound healing: St. John's wort extract exhibited a wound-healing activity whose mechanism of action is similar to that of Centella asiatica (TECA).


Scientific References