I don't tolerate SSRI antidepressants at all which only treat for serotonin. This product gives me greater energy and a more positive outlook in a subtle natural way, without the downsides of antidepressants -- I noticed the difference from day one. I'm finding that when I'm with people I'm more energetic and animated and less exhausted from the experience, also thinking faster, generally more alert, less afraid to meet new people, coping better and less short fused. I have discovered to take it in the morning as it can keep me awake if I take it later in the day, but otherwise zero side effects, unlike antidepressants. Very glad I bought this product and have put it on reorder.