12mg would be 1.2% nictotine. When vendors say Xmg nictotine
juice it is Xmg per 1 ml of liquid.
30ml bottle @ 12mg/ml = 360mg of nicotine.
Understand though, you do not absorb all of that nicotine when you inhale the vapor. The particles in the vapor are too large to reach the ends of your lungs, when you exhale through the nose you can absorb more nicotine that way, but again you don't absorb everything. Your body is not 100% efficient as everybody else is not.
