09/04/2026
How long does guaraná stay in your system?
There isn’t one exact answer for everyone. Guaraná contains caffeine, and how long you feel it depends on the amount you use, your caffeine tolerance, timing, food, medications, metabolism, and sleep.
A full 5 g serving of Mana Rush contains about 250 mg caffeine, so serving size matters. If you’re new to guaraná, a smaller serving may be more appropriate.
Read the full timing guide here:
How long does guarana last or stay in your system? Learn caffeine onset, half-life, timing, sleep effects, and how serving size changes caffeine dose.