Review of WS-23 Flavor:

This is by far my favorite cooling agent. 
WAY BETTER THAN KOOLADA.
Its NOT A MENTHOL in the way you might think.
It has absolutely no taste to it, just a cooling effect. And unlike Koolada, which I was told is the same "no taste but cooling" it does NOT mute the flavor it goes into. It doesn't take a whole lot to make fruity flavors, candy flavors, and drink flavors feel like they came fresh out the fridge. Very CLEAN and does not take away from your flavors in the proper %s.
Absolutely will be using this instead of every other cooling agent or menthol from now on.