I looked at whats in it and it will help you if you have bad diet intake and are not getting proper nutrients.
It seems like its basically a product to promote more serotonin transmitting in the brain. This will only work if you are not allready get it from you dietary intake. If you live in a developed country like USA, Canada, Western europe....you probably allready get enough of this in diet.
If think a prescription drug would be much more powerful in its effects although I have read that St. Johns Wort has shown to be mild antidepressant for some people.