Passionflower (Passiflora incarnata) has often been called the ''harried business person's herb'' to support relaxation. It has also been used traditionally to promote sleep. Standardized extracts are guaranteed to contain a specific quantity of a known marker compound, and are laboratory tested to insure consistent potency.With one of the most comprehensive herbariums in the world, Nature's Answer has identified Mother Nature's unique botanical fingerprint on over 800 plant reference standards. Utilizing Advanced Botanical Fingerprint Technology, these authenticated samples each serve as the standard by which all incoming raw materials are judged. Using carefully-controlled extraction techniques, Nature's Answer captures the holistic balance of each herb and the value is passed on to you, so you can be assured that the product in your hand is authentic, safe, effective, holistically balanced, and of course...Nature's Answer.