Valerian (Valerian officinalis) is a herb with characteristic pink flowers that is endemic to North America and Europe, with commercial preparations derived from the processing of its root or rhizome. Over the past twenty years, there has been a significant increase in interest in this herb, as evidenced by the publication of over 200 reviews on its chemical composition and its usefulness in clinical practice. Lamberts Valerian is one of the most powerful products on the world market, as each tablet contains 400mg of titrated extract, equivalent to 1600mg of Valerian root. Doctors usually recommend taking Valerian one hour before bedtime.