St. John's Wort & Herpes: What the Science Says

There is no scientific evidence to support the claim that St. John's Wort can prevent or treat herpes outbreaks.

Although St. John’s Wort has been shown to have some antiviral properties, it is not effective against the herpes virus. If you are experiencing herpes outbreaks, it is important to see a healthcare professional for proper diagnosis and treatment.

St. John’s Wort can also interfere with the effectiveness of certain medications, so it is important to talk to your doctor before taking it.