Perhaps I need to switch brands, find a more potent form, or do more research, but I am one of those folks out there for whom Valerian Root is useless. I didn't even feel like I took anything-there was no side effects either. I tend to be an insomniac and many prescription sleep aids don't even help me, so for folks in my category where challenging sleep problems exist, Valerian Root, or particularly this Spring Valley form, may be the last thing you want to count on. Even when I simply want to relax, and not even sleep, it is useless. I wouldn't tell anyone not to try it, but I would advise that your expectations should be low. I have had many successes with the quality and effects of other Spring Valley products, so I have nothing negative to say about the brand. I would be interested in the reviews of Valerian Root by other brands of different potencies. I don't doubt the integrity of Spring Valley, just the effectiveness of this root!