I ordered 5-htp from liftmode. It was shipped quickly and very professionally packaged. They include a micro-measuring spoon for the powder. Also, they include an analysis of the batch it came from. I was very impressed. As far as the product, this is my 1st time trying 5-htp, at first I did not notice any results after taking it for a few days so I stopped. After about a week I tried it again and noticed results within 24 hrs. I was walking around the next morning trying to figure out why I was in such a good mood, something good must've happened that I forgot about. Then I remembered that I took the 5-htp and realized that must be it. I've had no negative side effects.