🟢 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

2 Tablet(s) Serving Size
30 Servings
Other Combinations Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calcium
93 mg (7% DV)
Potassium
60 mg (2% DV)
📊 Market median: 500.0mg (143 products)
This product: 1500mg

Other Ingredients

Microcrystalline Cellulose Dicalcium Phosphate Croscarmellose Sodium Stearic Acid Hydroxypropyl Cellulose Magnesium Stearate Clear Coating

Label Claims — Verification

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

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Adult Use: Take 2 tablets daily, preferably without food, or as recommended by a nutritionally informed physician.

⚠️ Warnings & Precautions

Warning: Not intended for individuals under the age of 18.

Consult your physician if pregnant, nursing, have a medical condition, taking nitrates, warfarin, sildenafil (Viagra), medications for hypertension, diabetes, or other supplement that may lower blood pressure while taking in concomitant with this product.

Keep out of reach of children.

🧪 Formulation Notes

Doctor's Best Fast Acting Arginine Complex with Nitrosigine uses a patented bonded form of arginine silicate, clinically shown to significantly boost nitric oxide (NO) levels.

Non-GMO Gluten free Soy free

Vegan

Additional Information

NO is a key factor in increasing blood flow to working muscles. Engineered to take effect within 15 minutes, it delivers benefits through your entire workout for up to 6 hours - with a single dose! Continued use builds NO levels, which can boost blood flow and vessel flexibility.

Helps support arginine and silicon levels

Helps boost nitric oxide (NO) levels to support overall cardiovascular health Fast acting advanced ingredient that works within 15 minutes, delivering benefits that last up to 6 hours with a single dose

YDRB406-1

Vegan

750 mg

Store in a cool dry place.

Product Details

UPC / SKU 7 53950 00406 1
DSLD Entry Date 2019-06-24
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 203372
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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