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B4™ is a dual sports performance supplement that not only works as a pre-workout but as a weight-loss supplement as well.*
Double duty sports performance supplement that keeps you focused and energized.*
Targets those areas where it's harder to lose fat.*
Enhances motor control and motivation to train harder, longer, and more efficiently.*
Perfect to take as a pre-workout before training, as a mid-day energy boost, or on non-training days for continued support of fat loss.*
United StatesThis supplement is an important part of my morning workout. It really works.
Brazil United StatesLove this fat burner. It works perfectly for me!
United StatesThis is the best energy pill I’ve ever tried! I take it daily!
