USP Labs Double Jack3d is an effective formula, as it contains no sugar or calories.

 And to sweeten the deal, when you purchase USP Labs Double Jack3d you'll also receive a FREE shirt to rock at the gym while you crush your workouts. With its powerful formula and added bonus of a free shirt, USP Labs Double Jack3d is a must-have for any serious bodybuilder looking to take their training to the next level.

• Hardcore Pre-Workout 
• Insane Energy
• Tunnel Focus
• Shirt Bursting Pumps
• Bodybuilders Pre-Workout of Choice
• So Potent You'll Only Need a Single Scoop
• Free of Useless Fillers
• Featuring Well Researched Ingredients

Supplement Facts
Serving Size: 1-3 Scoops (5.55g-16.65g)
Servings Per Container: 15-45
Amount Per Serving %DV
Proprietary Blend: 4,145mg* 12,435mg*

*Daily Value Not Established

Other Ingredients: Citric Acid, Natural Flavors, Silicon Dioxide, Sucralose, Acesulfame Potassium, Beta Carotene, FD&C Red #40