Review of Koolada 10% PG Flavor-TFA:

Careful, this stuff is the real deal. It’s super concentrated, your dollar goes a long way with this stuff.  For whatever you’re making., as always, experiment. I used about 10 drops in homemade chocolate which was about 1 cup of  volume of finished product. Definitely noticeable. 30 drops in another batch of chocolate (1cup) and whoah. Super cooling! Pretty neat how it lingers a bit the next few breaths.