The trouble with herb meds is knowone can tell the strenth of each capsule. every plant is a different strenth to the next , there all shreded and packaged , so 1 jar could be far superior to another. Take valerian roots 1 big and strong an the next small and weak there,s no test on the strenth taking place. I used it, but found some times a capsule gave me a headache and the smell is gross it stinks a room out, the family use to run a mile as soon has they saw me open the jar.