This stuff is a new product that supposedly is made to increase hydration more than ordinary water. I don't know how it works. I failed chemistry so badly it's not even funny.
https://highdrateme.com/
Maybe the premium hydration claim is all hype. I just don't know.
It's made with CBD powder (The next big thing in the food world) so it has pain relieving properties too. I don't know how to test the hydration vs ordinary water but I swear the CBD powder in it helps with muscle aches on a long ride.
I started carrying a bottle of this on my long hot weather rides late last summer. It's a nice treat on a ride.
This time of year I load the bike up with hot coffee though....and I con't care how well is does or does not hydrate me because warm.