I've been trying 500 mg Niacin (regular, flush-kind) pre-workout for the last week. Pumps are sick. It seems to amplify the effect that I get from the other supplements I regularly use standalone (, and ). The only bad thing is the flush. Most of the time I just get a sun tan look, but sometimes I get red like a tomato and people ask me what's going on.
Anyone doing Niacin pre-workout? Other than the flush look, any reason why it may be a bad idea?