Tag: How long does caffeine last

A single can of Celsius contains 200mg of caffeine, approximately equivalent to two cups of coffee. For this reason, many consumers want to know exactly how long does Celsius caffeine last, and the answer involves several key factors, including your metabolism and tolerance.

For healthy adults, the average half-life of caffeine is approximately 5 hours, meaning 57.5 mg of caffeine could still be active in your system after that time. However, the total duration and perceived effects of 115 mg of caffeine can vary drastically depending on individual factors.

Caffeine is rapidly absorbed by the body, with effects beginning in as little as 15 minutes. However, the stimulating feeling of being 'perked up' lasts for a widely variable duration depending on several personal factors and consumption habits.

According to the FDA, the half-life of caffeine is typically between four and six hours, leading many to believe the stimulant effects completely fade within this timeframe. However, the notion that a person will feel the effects of caffeine wear off in 5 hours is a misconception, as several factors influence how long it truly remains active in your system.