Link here: https://erowid.org/plants/kava/
That Erowid page is pretty useless since the vast majority of reports on there aren't about kava at all but about kavalactones extracted from kava root and put into capsules and tinctures. That's like a review page claiming to be about coffee but in fact filled with reports of people taking caffeine powder. This is a problem because just like caffeine doesn't have a long history of safe use (and in fact there have been recent fatalities from it) in comparison to coffee, kavalactone products have been blamed in a number of liver injury cases while kava has a long history of safe use.
Also, the Erowid page on the liver FUD is almost two decades out of date. The WHO report in 2016 pretty much cleared traditionally prepared noble kava. See also: https://www.reddit.com/r/Kava/wiki/does-kava-cause-liver-dam...
Kava is a beverage made from water and the root of the kava plant. This is so both in the traditional sense (what the word means in the Pacific Islands) as well as in legal sense (as it will soon be listed in the Codex Alimentarius). Pharma and nutraceutical firms trying to peddle kavalactone products while piggybacking on the long history of safe use of kava are doing the world a disservice.
How does that saying go? The road to good answers is paved through Cunningham’s law? :)