SwissRX Nitric Oxide-120 Capsules-The Feed
SwissRX Nitric Oxide-120 Capsules-The Feed

SwissRX™ Nitric Oxide

Regular price $72.00
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Benefits of Swiss RX Nitric Oxide

Boost Performance

See increased ability to maintain hard efforts

Faster Training Gains

The ability to push harder in training will lead to increased gains

Train Longer

Formula boosts NO for 3 to 5 hours for your entire workout

Made for Athletes

The most effective natural performance booster

Wozers, this stuff really does work. I have consistently been at my PR during runs and my best Strava times ever on segments I have done dozens of times before

Brian in Park City, Utah.

Learn more about SwissRX™ Nitric Oxide

Boost your endurance and oxygen capacity for a full 5 hours with this unique performance booster.

The science behind Nitric Oxide being a major performance booster is clear. By boosting Nitric Oxide you dilate your arteries and can increase your blood flow to working muscles, resulting in increased endurance and easier recovery.  That's why supplements like Sur Alt Red, BeetElite, and others have become so popular with endurance athletes.

The problem is that most Nitric Oxide supplements use L. Arginine to do this. While this gives you a short spike in Nitric Acid 3 hours after ingestion, the effect fades very quickly.

SwissRX has figured out (through clinical trials) that if you use L. Citrulline, it will signal your body to create L. Arginine (versus supplementing it). This creates the same peak level of Nitric Oxide, but you get to maximum levels after only 2 hours and the level is maintained for a full 5 hours with no decline.

SwissRX has combined L. Citrulline with a patented form of Grape Seed Extract that has been shown to activate your body's production of Nitric Oxide (via eNOS) and help maintain arterial dilation. 


You want to take 4 to 6 pills daily. The important part is that you want to take 4 of them 60 minutes prior to training. Here is our recommended protocol:

If you’re training in the AM: Take 4 pills of SwissRX Nitric Oxide 60 minutes before training. Take 2 at night. If you’re Training in the PM: Take 2x SwissRX Nitric Oxide in the morning then 4x just before your PM workout. On Rest Days: Take 2x SwissRX Nitric Oxide in the AM and in the PM.


How you can enhance anaerobic performance and relieve muscle soreness: This study looks at L-Citrulline (key ingredient in SwissRX Nitric Oxide) and how supplementation can improve high-intensity training. Here is a link to the study

How you can improve time trialing (cycling) performance: This study reviews how supplementing with L-Citrulline (key ingredient in SwissRX Nitric Oxide) enhances use of BCAAs (Branched-chain amino acids) for energy production. Here is a link to the study

How you can improve oxygen uptake in high-intensity exercise: This study looks at L-Citrulline supplementation in a randomized, placebo-controlled, crossover study and its impact on exercise performance. Here is a link to the study