Stimulant based Pre Workouts when used appropriately can help to provide a mental stimulus to ensure both physical and mental energy is elevated to ensure you can train at your full potential.
Nootropic based products such as Supplement Needs PRE Focus+ provide a gentle source of caffeine alongside nootropic ingredients to increase mental focus and energy, whilst heavier stimulant based products such as RedCon1 Total War and Strom Sports Nutrition StimuMax Pro may be suited more to those looking for an intense energy burst.