Why does Redbull work but not Pro-Plus?

Question

Redbull gives me an amazing boost, I can actually feel it working and it helps no end when I drive long distances. But I thought it was a little bad for me, so bought some Pro-Plus tablets which a dose of two tablets gives you around the same amount of caffeine as a Redbull, but after getting through most of the packet in the last few weeks, I've decided that eating TicTacs would probably do a better job! They're USELESS!! Why is this, when they say that a dose of two tablets gives you 100mg of caffeine? Give me Redbull anyday!!!

Answer 1

check the ingredients.

They're probably a different combination and at different amounts per serving.