- C4 iD Series is your personalized pre-workout experience product line. With the C4 iD Series, you can pick and choose which C4 will fuel your fitness goals, because while we do share the desire to improve ourselves, we all have different bodies, different workouts and different ambitions. With the C4 iD Series, you can pick and choose the best pre-workout for you.
- A Product/Experience grid is present on all C4 iD product labels. This grid expresses moderate to extreme benefits of each products’ energy, focus, pumps and endurance while calling out novel benefits such as containing creatine nitrate and supporting weightloss.
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