Nitric Oxide BoostTM

Heart, muscle &
circulation support *

L-Arginine 1,000 mg

SpectraTM 100 mg

L-Citrulline 2,000 mg

Triple-action formula supports heart, muscle & circulation*

Designed to help support your body's production of nitric oxide*

Nitric Oxide BoostTM — for athletes and bodybuilders

Nitric Oxide Boost is designed to assist your body’s normal production of nitric oxide by supplying three dynamic support factors: L-Arginine, L-Citrulline and Spectra™.*

L-Arginine is a key nitric oxide precursor*

L-Arginine is a well known amino acid that has been a popular “pump” ingredient with bodybuilders and athletes for years. It is one of the main precursors in the body’s mechanism to produce nitric oxide.* (See Figure 1)

L-Citrulline boosts L-Arginine to support nitric oxide levels*

L-Citrulline is closely related to L-Arginine and it also plays a significant role in the body’s production of nitric oxide. L-Citrulline is able to inhibit arginase, an enzyme that breaks down L-Arginine before it reaches the blood. As a result, taking L-Citrulline with L-Arginine may help more of the ingested L-Arginine pass through your system and get into the bloodstream.*

 Spectra™ is a trademark of VDF FutureCeuticals, Inc., used under license.

Spectra fights free radicals and supports nitric oxide*

Spectra™ is a precise blend of 29 gluten free, non-GE fruit, vegetable and herbal ingredients designed to support the body’s response to five different free radicals. It works on peroxyl radicals, hydroxyl radicals, peroxynitrite, 

superoxide anion, and singlet oxygen.*


A recent double-blind, crossover, placebo-controlled human study evaluated the effects of 100 mg of Spectra™ (the same amount in our formula) taken with breakfast after an overnight fast. Spectra™ demonstrated significant antioxidant action in healthy adults against reactive oxygen species (ROS), a category of free radicals.* (See Figure 2)

This decrease in free radicals also resulted in increased bioavailable nitric oxide concentrations.* (See Figure 3)


In the body, nitric oxide plays a role in aerobic capacity, exercise performance and cardiovascular health.*

Here's what is in ProstaFit®
Ingredients (3 capsules a day)  |  Daily Amount

Nitric Oxide BoostTM

Triple-action formula supports heart, muscle & circulation*
Try it today and help support your body’s production of nitric oxide!*


Take 4 capsules with a large glass of water 1-2 times daily. Take before workouts or between meals.

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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.Information provided on this site is solely for informational purposes only. It is not a substitute for professional medical advice. Do not use this information for diagnosing or treating a health problem or disease, or prescribing of any medications or supplements. Only your healthcare provider should diagnose your healthcare problems and prescribe treatment. None of our statements or information, including health claims, articles, advertising or product information have been evaluated or approved by the United States Food and Drug Administration (FDA).  Please consult your healthcare provider before starting any supplement, diet or exercise program, before taking any medications or receiving treatment, particularly if you are currently under medical care. Make sure you carefully read all product labeling and packaging prior to use. If you have or suspect you may have a health problem, do not take any supplements without first consulting and obtaining the approval of your healthcare provider. ©2021 Fitness Labs®. All rights reserved.