L-Arginine Extra Strength 2662 mg
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 43% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
4 Capsule(s)
Serving Size
15
Servings
Other Combinations
Product Type
43%
Evidence Coverage
Supplement Facts — Evidence Check
Calcium
72 mg
(6% DV)
30 mg NE
(188% DV)
✅ 2.1× RDA — within safe limits
📚 193 studies (Tier A: 5, B: 63)
800 mg
📊 Market median: 500.0mg (143 products)
800 mg
📊 Market median: 500.0mg (143 products)
400 mg
📊 Market median: 4002.0mg (1 products)
📚 20 studies (Tier A: 0, B: 2)
400 mg
📊 Market median: 2000.0mg (275 products)
160 mg
📊 Market median: 1500.0mg (104 products)
📚 21 studies (Tier A: 0, B: 2)
Other Ingredients
Cellulose
Stearate
Silicon Dioxide
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)
Product Information
📋 Directions for Use
Suggested use: As a dietary supplement take four (4) capsules once a day. For best results take 20-30 min before activity with an 8oz. glass of water or as directed by your healthcare professional.
⚠️ Warnings & Precautions
Caution: Do not exceed recommended dose.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Keep out of reach of children.
Do not use if safety seal is damaged or missing.
🧪 Formulation Notes
Nitric oxide support Performance Energy Endurance Vascular Support added
Additional Information
Store in a cool, dry place.
Product Details
UPC / SKU
X002L20OAR
DSLD Entry Date
2025-06-25
Product Type
Other Combinations
Form
Capsule
Brand
Built By Nature
DSLD ID
328627
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
A
Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
B
Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
B
Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
B
The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine
B
Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute ischaemic stroke
B
Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
B
Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
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