Blackmores St John?S WortA clinically trialled dose of St Johns wort to support healthy mood balance. Traditionally used in western herbal medicine for mild anxiety and nervous restlessness Supports healthy mood balance Benefits Lifes demands and challenges can sometimes leave us feeling troubled, nervous and sad. Blackmores St Johns Wort contains a clinically trialled dose of Hypericum perforatum (St Johns wort) and supports healthy mood balance.