Well, it works on the Gaba-A receptors. Its like a benzo, or alcohol, in that it relaxes you, but you still retain a sharp, clear mind. There are 2 types of Kava. Noble, and non-noble. You want to make sure you buy noble kava that has been tested as such. I recommend looking at the kava vendor list on this sub and looking at reviews. Do your research. Kava supplements are bunk. I really can't give you much more information except kava effects everyone differently. You can kind of expect heavy kavas to feel more sedative and cozy, and heady kavas to feel kind of like a the social kick you get from alcohol. Getting familiar with the acetone test may help until you settle on a vendor you trust.