Longfill e-liquids are perfect for vapers who like to personalise their e-liquid. The Longfill format contains a bottle partially filled with concentrated flavour, leaving space to add neutral base and nicotine boosters. A longfill bottle contains a concentrated flavour base, usually filled with 10ml or 20ml. Simply add neutral base and nicotine boosters to the longfill to obtain the desired dosage. This Longfill format is ideal for those who prefer to adjust their nicotine levels and enjoy larger quantities of liquid. Practical and economical, longfills offer great freedom for your blends while guaranteeing intense flavours.