Passion flower Passion Flower Passiflora incarnata L. The passion flower plant (passiflora incarnata L.) is native to America and has a long history of use among Native Americans for various health conditions. Herbal medicine texts and compendia indicate it can relieve mild symptoms of mental stress, irritability and nervous tension and can also promote sleep. It is often used in combinations with other relaxing herbal substances such as valerian, lemon balm or hops. Recent scientific articles refer to the unexploited potential of passion flower for anxiety and stress. Product Information: Standardized on: vitexin 2% or 3.5% Health Benefits: Brain ADVANTAGES Advantages of Passion Flower Natural support for restful sleep Used to support mental stress and mood disorders Disclaimer: Application per traditional use as described in monographs and/or application substantiated by third party based upon a review of scientific evidence.