Tag: 25mg caffeine

For the average healthy adult, the half-life of caffeine is approximately 5 to 6 hours, meaning it takes that long for the amount in your system to reduce by half. The effects of a 25mg dose are influenced by individual factors, so how long will 25mg of caffeine last is not a simple, one-size-fits-all answer.

Caffeine's half-life, or the time it takes for half the dose to be metabolized, can range significantly from 2 to 12 hours depending on various factors. This makes answering the question, 'How long will 25 mg of caffeine last?' surprisingly complex, though for most people, the noticeable effects of this small amount will be minor and wear off relatively quickly.