Long lasting charge, without the crash
I woke up fairly early and let myself become tired till the time to take the product.
After taking it, there was no immediate effect but after a time, maybe 30-45min the heaviness in my eyes disappeared, so I knew it had work to an extent. As the morning progressed I felt less tired, a bit more responsive but happily without the feeling of laying down as I've felt many times before by playing games or doing chores.
This product is that of a slow burn. Once the effects are in, it'll stay in your body and slowly burn away giving you a constant charge to do what you need productively.
At the end of the day it'll dissipate and leave you without the normal crash that comes from normal energy drinks.
This is what surprised me most as I've built a tolerance to those drinks from many all nighters gaming.