Combining performance and focus ingredients that work synergistically, this blend gives you everything you need to "Harness" the power of your workout.

Everyone has their tools to success. A pep talk, the lucky underwear, you name it. For you though its none of those things. You need an elixir that will surely give you the kick in the pants to do not 1 more rep, but 5 more reps. Not 1 more lap but 10 more laps. What is this is elixir we're referring to? Well, its ARN HARNESS of course!

• Powerful ingredients to help pack a punch 
• 4 delicious flavours 
• Perfect choice for anyone 
• Combines nootropics, stimulants & nitric-oxide boosters

Harness is a great pre-workout option on its own, but is best stacked with ARMS RACE NUTRITION'S Daily Pump, giving you an out of this world workout and a ridiculous pump. 

L-Citrulline: Designed to help you achieve the ultimate pump and get you excited for the gym day in and day out. L-Citrulline helps to increase blood flow, making it the perfect supplement to fuel your muscles and leave you feeling ‘swol’ after your training session. Not only does it help you get the muscle pump of your dreams, but it can help you combat muscle fatigue and muscle weakness.

Beta-Alanine: Beta Alanine enhances performance by increasing exercise capacity and decreasing muscle fatigue. It also has antioxidant, immune-enhancing and anti-aging properties.

L-Tyrosine: tyrosine may help to mitigate the sense of depletion and fatigue felt at the end of a workout.

Caffeine Anhydrous: Caffeine Anhydrous is well established as a performance enhancer. Numerous studies have found that caffeine enhances endurance performance in activities like running and cycling. Studies have also found that caffeine improved muscle strength and endurance.

ZumXR™ XR Caffeine: Züm-XR is a patented coating technology that allows the dissolution profile of certain ingredients, primarily caffeine, to have a longer lasting effect in blood serum levels.