Designed for use with 50/50 Shortfill e-liquids, this nicotine booster shot by NicNic in a 50/50 PG/VG blend will boost your nicotine-free e-liquid into a nicotine-containing liquid.  This is a 10ml sized bottle containing 18mg/ml nicotine and is flavourless.

2 x nicotine shots into a 120ml shortfill bottle with 100ml 0mg e liquid will create 120ml 3mg