TweetI feel like the 2 main purposes of preworkout is 1. Maximized pump during the workout and 2. Energy. If you take away caffeine and/or DMAA (and variants), you’re left with creatine, beta alanine/niacin, and in some cases NO.
Since you’ll be hard pressed to find a preworkout without caffeine, we’ll assume you’re referring to just the DMAA, DMHA, DMAE classes. In this case I find NO Explode and C4 hard to beat for the money. Great pump on both of these.
If you don’t even want the caffeine, I would just recommend an apple, 5g of micronized creatine, and 5g of aminos.
Just my .02
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