The Takeaway. But it's cheap, it has caffeine, and the other ingredients could have an effect on endurance and power. The doses may seem low to some, butif you want to keep your pre-workouts to less than 50 cents a serving, The Curse!could be useful.
Another ingredient with mild downsides is niacin, which is included in many pre-workout supplements for its skin-flushing effects.In high doses of 500 mg or more, it can trigger a blood rush to the surface of your skin, resulting in red patches( 12 ).
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