We all know that in order to progress - be that increasing your strength, building lean muscle, or losing stubborn bodyfat - you need to workout hard! Pre-workout supplements are designed to increase your energy, intensity, aggression, endurance or strength before a workout. You can only workout so many times per week - make every workout count with a pre-workout supplement! most pre workout supplements consist of caffine, creatine and arginine which promotes nitric oxide levels in the body providing you with more explosive power and gives you increased pump while training.
Carbohydrate- your bodies most prefered source of energy often comes in the forms of maltodextrin and waxy barley starch.