Arms Race Nutrition Harness RTD Variety Pack For Easy Sampling

Harness RTD Variety Pack comes with five flavor options to try!

Arms Race Nutrition, headed up by Doug Miller and Julian Smith, is well-known across the supplement world for their high-octane formulas like their Harness and Harness Evolution pre-workout supplements. They know how to give their customers the best bang for their buck with ingredients that move the needle.

Sometimes, the biggest difference-maker comes in another form: delivery method. Ready-to-drink products have exploded in recent years due to their unparalleled ease of consumption. Just through them in a gym bag, and sip on your way to the rack.

Harness RTD Now in Variety Packs

On Black Friday 2023, ARN released Harness RTD, and it’s been a hit. Containing the same ingredients you know and love – citrulline, beta alanine, a hefty 300 milligram dose of caffeine, and more, crushing one of these bad boys will have you on the top of your game.

At the turn of the year, they’ve now released a variety pack of the Harness RTD flavors, so you can get a full tasting of what ARN has to offer. Included are some classic flavors: Big Apple, Key West, Venice Beach, Lemon Rush, and Rainbow Sherbet.

We’re going to dive into a little summary on how ARN Harness RTD works, but first, let’s check PricePlow for good ARN deals:

ARN Harness RTD – How It Works

You can read the full scientific breakdown in our main Arms Race Harness RTD article, but below’s a quick breakdown. Each Harness RTD bottle contains the following ingredients:

• L-citrulline (5000mg), an amino acid, converts to arginine on its way to nitric oxide (NO). However, it’s more effective than arginine at increasing NO production due to its better bioavailability, even with the intermediary step.

  NO causes vasodilation, which has health benefits and supports athletic performance and recovery by enhancing nutrient delivery, reducing exercise-induced soreness, increasing power, endurance, growth hormone production, and sparing protein from breakdown, making citrulline a key ingredient in pre-workout formulas.

• Beta-alanine (3200mg), an ergogenic aid, boosts endurance by forming carnosine when joined with the amino acid L-histidine. Carnosine then helps clear lactic acid from muscles, delaying fatigue. Beta-alanine has better bioavailability than carnosine itself, making it more efficient to use, and is particularly effective for high-intensity activities lasting 30 seconds to 10 minutes, with the common tingling sensation being harmless.
• Alpha GPC 50% (300mg) is a form of choline and essential B vitamin, and is crucial for maintaining cell membranes and acetylcholine synthesis, enhancing cognitive performance and memory conversion. It’s particularly effective as a nootropic, crossing the blood-brain barrier, and has been shown to increase strength gains and growth hormone production, beneficial for both cognitive function and physical performance.
• Caffeine anhydrous (300mg of ~350mg total), a widely-used stimulant, improves performance, cognition, and energy production by blocking adenosine receptors and increasing cAMP levels, thereby reducing fatigue and boosting cellular metabolism. Its ergogenic effects, particularly for endurance and high-intensity exercise, are recognized by the International Society of Sports Nutrition, and it can also enhance thermogenesis, aiding in weight management.


Not only did elevATP increase total strength and lower body strength, but it also improves vertical jumping power in athletes.

• ElevATP (150mg), a blend of botanical extracts from peat moss and apples, has been shown to elevate extracellular ATP levels, which are crucial for cellular energy and metabolic processes. A 2016 study demonstrated that daily supplementation with 150 milligrams of ElevATP significantly improved squat and deadlift one-repetition maximum values, as well as vertical jump velocity and power.
• Dicaffeine malate (75mg, yielding ~50mg of ~350mg total), a compound of caffeine and malic acid, delivers about 56 milligrams of caffeine per 75 milligram dose, contributing to a slower, more gradual release and tapering off of caffeine effects in pre-workout formulas, helping to mitigate withdrawal symptoms.
• Huperzia serrata Extract (10mg yielding 100mcg Huperzine A) works by inhibiting the enzyme acetylcholinesterase, which degrades acetylcholine, complementing alpha-GPC by prolonging acetylcholine’s lifespan and increasing its activity, and also has the ability to stimulate neurogenesis, the growth of new neurons.

You can read more in our full article, Arms Race Nutrition Harness RTD Pre-Workout Revealed with New Branding.

All ARN Harness RTD Flavors

Check out our up-to-date list of Harness RTD flavors below:

Harness RTD is available is iconic flavors like Venice Beach and Key West!

Great flavors and new formats

Julian, Doug, and the whole team at Arms Race Nutrition brought the heat with Harness. It has become a tremendously popular pre-workout RTD in a short amount of time, due in no small part to the brand’s flavoring prowess.

This is also a glimpse into the new branding from Arms Race Nutrition, which we think looks absolutely perfect for the ethos of the brand.

They’ve managed to adapt the taste of tremendous flavors like Key West and Venice Beach to a liquid RTD format, and they’ve been flying off the shelves. If you can’t quite decide what flavor to start with, you can try them all with the new variety pack.