Kalnerz is a dietary supplement containing valerian root, which supports overall relaxation and restful sleep. The easy-to-swallow capsules are gluten-free, preservative-free and contain no starch, artificial colors, salt, artificial flavors, wheat, yeast, or corn. As a dietary supplement, take one capsule before bedtime with water or as directed by your healthcare professional. It is important to note that this statement has not been evaluated by the Food and Drug Administration.