It's not Swiss oaks, it's Swiss oats. The main ingredient is green oats, which is well known for increasing testosterone and for relaxing and regulating the nervous system. It also contains nettles, though I don't really know why. This is usually used, again, to help the male organs, particularly the prostate, and as an antihistamine. It's high in minerals, but hard to see how it would do anything for depression, but it couldn't hurt.