The amount of time that each bottle of bar series lasts for depends entirely on the usage as some people vape more frequently than others. However, Bar Series ic salt vape juices hold the equivalent of 5 disposable vapes and so could last for up to 3000 puffs per bottle. On the other hand Bar Series Shorfill e-liquids hold 100ml but are intended for use with high powered vape kits, which use more juice - therefore a 100ml bottle of Bar Series e-liquid could last anywhere from a week to two weeks, again depending on usage.
Each bottle of Bar Series vape liquids will display an expiration date, and it’s recommended that for the best performance and flavour that you use each bottle before the expiration date shown.