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N.O.S. Nitric Oxide Synthesis Pumped Fruit Punch

Name: N.O.S. Nitric Oxide Synthesis Pumped Fruit Punch
Brand: MET-Rx
SKU: 181953
Availability: InStock

Brand: MET-Rx

Adult (18 - 50 Years)Nitric Oxide Synthesis Pumped is a Neuromuscular Stimulator that provides a burst of energy with Caffeine to accelerate workout intensity. Arginine is an amino acid involved in the formation of Nitric OxideOther Combinations

Quality score

85/100

DSLD

181953

UPC

786560579285

Form

Liquid

Serving size

16.9 fl. Oz.

See label

Net contents

16.9 fl. Oz.

Standard Pack

Top DV

Total Carbohydrates4%

Per serving

Directions

Shake well before use

NIH DSLD-backedSource links included

Updated: 2026-01-16

Dr. Feb's Analysis

Scientific Mechanism

The Extreme Nitric Oxide Synthesis Pumped Complex (13,470 mg) centers on Arginine, a precursor to nitric oxide (NO). At the cellular level, increased NO availability triggers vasodilation, relaxing blood vessels to improve blood flow and nutrient delivery to working muscles. This process, known as hyperemia, facilitates the 'pump' sensation. Additionally, the formula contains Caffeine, a central nervous system stimulant. Caffeine blocks adenosine receptors in the brain, reducing perceived exertion and increasing alertness. Niacin (Vitamin B3) supports energy metabolism by helping convert food into usable fuel, complementing the stimulant effects for sustained workout intensity.

Key Benefits

Key benefits include:

Enhanced vasodilation for improved muscle pumps and blood flow
Increased energy and focus via caffeine stimulation
Support for neuromuscular performance and intensity
Rapid absorption liquid delivery system

Usage & Safety

Consume one 16.9 fl. oz. bottle during your workout session or 30-45 minutes prior to training for optimal absorption. Do not exceed one bottle per workout session or more often than every four hours. Limit intake to two bottles in a 24-hour period. Because this product contains caffeine, avoid other caffeine sources to prevent jitteriness or adverse effects. Consult a physician if you are pregnant, nursing, taking medication, or sensitive to caffeine.

Daily value highlights

Total Carbohydrates4%

Niacin125%

Sodium1%

Receipts

Official label PDF

NIH DSLD label snapshot (primary source)

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Frequently Asked Questions

What are the key benefits of N.O.S. Nitric Oxide Synthesis Pumped Fruit Punch?▼

It provides a high dose of arginine to support nitric oxide production, resulting in better blood flow and muscle pumps. It also delivers caffeine for energy and focus, and niacin for metabolic support.

How should I take this supplement?▼

Drink one bottle (16.9 fl. oz.) roughly 30-45 minutes before your workout. Adhere to the label warning: do not exceed one bottle per workout or two bottles in 24 hours.

Are there known allergens?▼

The label does not list common allergens like dairy, soy, or nuts. However, it contains caffeine. Individuals sensitive to caffeine should avoid this product.

Is MET-Rx a reputable brand?▼

Yes, MET-Rx is a well-established sports nutrition brand. Their products are widely recognized in the fitness industry and are often referenced in nutritional databases.