Only like to take a half scoop (+/-) at a time and it seems to be enough. Promotes very deep feelings of relaxation and sleepiness.
Takes 1 1/2 to 2 hours for it to fully affect me.
I do feel a bit of grogginess in the morning, and can easily go back to sleep for at least another cycle if I have time. Definitely not an everyday thing — maybe once a week/two weeks, at best, on a day you can take as much time as needed.
I try not to take this unless I'm really really struggling to sleep for at least a few days (4-5) at a time; more than a week is probably best given what is in this and the quantities there of. This site has products better suited for everyday use. (e.g. el jefe sueño)