Valerian (herb) particular binding site. Hydrophilic extractions of the herb commonly sold over the counter, however, probably do not contain significant amounts of isovaltrate. Valerenic acid in valerian stimulates serotonin receptors as a partial agonist, including 5-HT which is implicated in the sleep-wake cycle. The chief constituent of valerian is a yellowish-green to brownish-yellow oil present in the dried root, varying in content from 0.5 to 2.0%. This variation in quantity may be determined by location; a dry, stony soil yields a root richer in oil than moist, fertile soil. The volatile oils that form the active ingredient are pungent, somewhat reminiscent
Valerian and the City of a Thousand Planets everyone before kidnapping Filitt. Valerian chases the kidnappers to the infected area and crashes his vehicle. Evading arrest for insubordination, Laureline enlists the help of some aliens to track Valerian, and finds him unconscious at the edge of the infected zone. She wakes him, but is kidnapped by a primitive imperial tribe emigrated from planet Goara called "Boulan Bathors" that lives nearby. Valerian infiltrates the tribe's territory with the help of a shape-shifting Glamopod entertainer, Bubble, which he meets in red-light district Paradise Alley. They save Laureline and escape, but Bubble is mortally wounded. As she dies, she convinces Valerian