What actually works
Caffeine reliably boosts focus and reduces perceived effort, so if pre-workout helps you, that is why. Take 3 to 6 mg per kg about 30 to 60 minutes before training, from a scoop, a coffee, or a caffeine pill.
No; pre-workout is optional, and its only proven performance ingredient is caffeine, which coffee provides far cheaper.
You do not need pre-workout to train well. The one ingredient with strong evidence for performance is caffeine at roughly 3 to 6 mg per kg bodyweight, and a coffee delivers that for a fraction of the price. Creatine at 5 g a day helps more long term, but it works taken any time, not as a pre-workout hit.
Caffeine reliably boosts focus and reduces perceived effort, so if pre-workout helps you, that is why. Take 3 to 6 mg per kg about 30 to 60 minutes before training, from a scoop, a coffee, or a caffeine pill.
The tingle from beta-alanine and the pump from citrulline are minor and not what drives your workout. You are largely paying for caffeine plus flavoring, so a cheap caffeine source does the same job.
If you want one supplement worth taking, it is creatine monohydrate at 5 g daily. It builds strength and size over time and works regardless of timing, so it does not need to be in a pre-workout.
No; pre-workout is optional, and its only proven performance ingredient is caffeine, which coffee provides far cheaper.