What seems to be an amazing product from what I have read is TruKava by Cameron George. It seems his quite a humble guy and an amazing advocate and embassitor for kava use and has had actual experiences on using kava for his deliberating auto immune disorder and benzodiazpine addiction in which kava saved his life and got him off alot of addictive pharmaceuticals. Some really good podcasts with Dave aspery and he talks about his carbonated kava beverage amongst many other things regarding kava. I have learned so much things about the science and pharmacology properties of Kava listening to him.
I don't want to continue to be the thorn on this thread but there is a distinct difference between kava and a kavalactone extract, calling an extract kava is incorrect and while he may advocate for kava. Real kava is dried root that is subsequently ground down and mixed with water. That is the beverage (and only beverage) that has been around for millennia.
Various forms of kavalactone beverages have become popular over the last 4-5 years and have created a small market, within an already small market (for lazy Americans, quite honestly lol) who can't stomach drinking kava, which isn't at all that bad.
It is not just about picking on something different or newer but there is an distinct difference in effects as well. Kava is almost multidimensional, kava beverages have stripped away any soul or essence of what once was an amazing plant. It lacks depth and therefore most kavalactone beverages, candies, tinctures, etc, are short-lived, effects may hit hard for 20 - 30 minutes and that is it.
You pay more to get less and then wonder why you need to drink so much more of the expensive "kava beverage".