How long does a nicotine booster last?
A nicotine booster generally keeps for 18 to 24 months if stored in optimal conditions, away from heat and light. Beyond this best-before date, the nicotine does not become dangerous, but it gradually loses its strength and can develop a rather unpleasant peppery aftertaste.
Oxidation is your main enemy: a color shift toward brown is a sign that the chemistry is at work, even if the booster remains technically usable. To maximize the longevity of your bottles, the bottom of the refrigerator or a cool cupboard are your best allies against the passing of time. In short, as long as the smell remains neutral and the color clear, your booster is ready for use. The freshness of your components is the secret to a vape without any off-notes.