18mg (1.8%) Nicotine StrengthSalt. Nicotine ( 18mg / 1.8%). When one 100% PG nicotine booster is added to a 50ml Shortfill, it will result in 60ml of 3mg, 60%VG/40%PG E-liquid. Zeus Juice 100ml E Liquid 0mg 50/50 VG/PG vape Ecig vape juice UK.