Posted by iHerb Customer on Dec 30, 2011 | Verified Purchase
A friend of mine swears by Thorne's 5HTP. I found it to be of intermittent value. After initial, excellent and rapid results I can't really tell the difference. After a week, the effect seemed considerably diminished. Perhaps the body adapts quickly and the brain just adjusts accordingly. Was taking 1 first thing (before eating) & 1 last thing at night. No side-effects that I could identify.