Is this the most caffeinated preworkout on the market? Review of Mr Hyde by Pro Supps.

This week we are reviewing the infamous Mr Hyde from Pro Supps courtesy of November’s Muscle Crate. With a huge 400mg of caffeine, this pre-workout tops the caffeine leaderboard by over 75mg (about 1 cup of coffee).

This preworkout has:

  • 400mg caffeine
  • 0.5g citrulline
  • 2.5g beta alanine
  • 2.5g creatine monohydrate

So, at over 5 times more caffeine than a cup of instant coffee, how is this one going to work out? Will we be able to see sounds? And is this pre-workout strong enough to beat my hangover from New Years Eve? Find out the answers to most of these questions by watching the video! Finally, make sure to follow us on Instagram at

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