🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📸

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Label Data

3 Caplet(s) Serving Size
60 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calories
5 {Calories}
Total Carbohydrates
1 g (1% DV)
Dietary Fiber
1 g (4% DV)
Sodium
15 mg (1% DV)
📊 Market median: 500.0mg (143 products)
This product: 3000mg

Other Ingredients

Cellulose Dicalcium Phosphate Croscarmellose Hypromellose Stearic Acid Silica Vegetable Magnesium Stearate Cellulose Coating

Label Claims — Verification

All Other
Structure/Function
All Other (100% of products) Structure/Function (91% of products) Nutrient (35% of products)

Target Groups

Adult (18 - 50 Years) Dairy Free Sugar Free

Product Information

📋 Directions for Use

DIRECTIONS: Adults, take one serving (3 caplets) 45 minutes before exercise and another serving immediately after exercise. As a reminder, discuss the supplements and medications you take with your health care providers.

⚠️ Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN. STORE IN A DRY PLACE AND AVOID EXCESSIVE HEAT.

WARNING: If you are pregnant, nursing or taking any medications, consult your doctor before use.

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

Not intended for use by persons under the age of 18.

TAMPER RESISTANT: DO NOT USE IF SEAL UNDER CAP IS BROKEN OR MISSING.

🧪 Formulation Notes

FREE OF: yeast, wheat, milk or milk derivatives, lactose, sugar, preservatives, soy, artificial color, artificial flavor.

Additional Information

>> Superior Vaso-Flow Booster* >> Enhances Blood Flow and Nutrient Delivery to Muscles*

>> THE REVOLUTIONARY SCIENCE OF NITRIC OXIDE* <<<

11868 04B B11866 KZJ

Product Details

UPC / SKU 7 86560 11868 2
DSLD Entry Date 2012-03-23
Product Type Amino acid/Protein
Form Other (e.g. tea bag)
Brand MET-Rx
DSLD ID 6558
Data Updated 2026-04-11

Research Evidence

45 Research Sources
52 Avg Quality Score
12 Rct
11 Systematic Review
11 Meta Analysis
11 Clinical Trial
A Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Meta Analysis The Cochrane database of systematic reviews 2017
A Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Meta Analysis The Cochrane database of systematic reviews 2017
B Nutritional interventions for treating foot ulcers in people with diabetes
Meta Analysis The Cochrane database of systematic reviews 2020
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Systematic Review The Cochrane database of systematic reviews 2002
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2007
B The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine
Meta Analysis Nutrients 2021
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute ischaemic stroke
Systematic Review The Cochrane database of systematic reviews 2000
B Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Meta Analysis Nutrients 2023
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2004
B An Analysis of Popular Online Erectile Dysfunction Supplements
Systematic Review The journal of sexual medicine 2019
View all evidence for L Arginine →

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