Standard or (freebase) e-liquid
is the commonly found in strengths
of 0,3,6,12mg of nicotine. It is the
standard formula used since vaping was invented.
Nicotine salts were invented in 2015 by JUUL. They are commenly found in strengths of 20-50mg. Nicotine Salts are not intended for Sub-Ohm use .
Disposables are meant for one time use only.