30mg is just too much for me. It feels like it burns my whole mouth and throat. I try to do 50/50 with 12mg, I can still feel the harshness from the 30mg. 24mg out of the bottle is OK, but I might even go a little lower. For a while, I thought it was just me and I was just getting a sore throat, but no.. its the 30mg!! Never again...