N.O.S. Nitric Oxide Synthesis Pumped Watermelon

product on market Liquid MET-Rx 🟢 Safety: 100/100
Brand: MET-Rx
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 17% of ingredients have research evidence
B Label Compliance Grade

Product Label

Label for N.O.S. Nitric Oxide Synthesis Pumped Watermelon
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Label Data

16.9 fl. Oz. Serving Size
Other Combinations Product Type
17% Evidence Coverage

Supplement Facts — Evidence Check

Calories
60 Calorie(s)
Total Carbohydrates
11 Gram(s) (4% DV)
20 mg (125% DV)
✅ 1.4× RDA — within safe limits 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 20mg UL 35mg
Sodium
20 mg (1% DV)
Potassium
100 mg (2% DV)
Extreme Nitric Oxide Synthesis Pumped Complex
13470 mg

Other Ingredients

Water Glycerin Arginine Complex Phosphoric Acid Natural and Artificial flavor Malic Acid Citric Acid Potassium Sorbate Sodium Benzoate Citrulline Malate Caffeine Anhydrous Potassium Citrate Sucralose Acesulfame Potassium Niacinamide Ingredients

Label Claims — Verification

❓ Nutrient
❓ All Other
❓ Structure/Function
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult (18 - 50 Years) Sugar Free

Product Information

📋 Directions for Use

Shake well before use

Extreme pre-workout

Directions for adult use only: Drink one (1) bottle per daily workout session as follows: 1/2 before and the balance during the course of your workout. Do not exceed one (1) bottle per workout session or more often than every four hours. Limit use to no more than two (2) bottles in a 24-hour period.

⚠️ Warnings & Precautions

Warning: Not intended for use by pregnant or nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

This product contains caffeine. Avoid additional consumption of caffeine, which may cause adverse effects. Not intended for use by persons under the age of 18 or for those sensitive to caffeine.

Not intended for use by persons under the age of 18 or for those sensitive to caffeine. Keep out of reach of children.

Tamper resistant: Do not use if cap is broken or missing.

Do not exceed one (1) bottle per workout session or more often than every four hours. Limit use to no more than two (2) bottles in a 24-hour period.

🧪 Formulation Notes

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 Oxide, which can help support circulation. Glycerin may help support body hydration. Our Extreme Nitric Oxide Synthesis Pumped Complex also contains Citrulline Malate.

This product contains caffeine.

Free of Sugar & Artificial Color

Sugar Free

Additional Information

Store unopened container at room temperature and avoid excessive heat.

Not a low calorie product

Refrigerate after opening

57926 01B B57926

Naturally & Artificially Flavored New look

Promotes Nitric Oxide Synthesis Explosive Energy & Mental Focus

Product Details

UPC / SKU 7 86560 57926 1
DSLD Entry Date 2018-10-25
Product Type Other Combinations
Form Liquid
Brand MET-Rx
DSLD ID 181948
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
PubMed DOI Cochrane
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
PubMed DOI
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
PubMed DOI
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
PubMed DOI
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
PubMed DOI
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
PubMed DOI
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
PubMed DOI
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI Cochrane
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
PubMed DOI
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
PubMed DOI
View all evidence for Niacin →

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