I've only tried Menthol from TPA (perfumer's apprentice) It's VERY strong. I mean, like literally add 1 drop per 10ml of
juice to start. Also, make sure you use separate EVERYTHING (syringes, pipettes, atomizers, etc) when using anything mentholated as it is very difficult to get out. I was making
juice one day and I have a bowl of hot water to clean out my syringes in between flavors/etc. I was using menthol (very small amount) and it tainted the entire water. It's crazy how potent the stuff is. It also may not be a bad idea to dilute it even more, which actually is what I'm going to do. (add a drop to some vg and use that to add menthol to my juices because when I don't, it always comes out too mentholated) Keep in mind, I usually do only 6ml to 10ml at a time.