L-Arginine
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
1 Capsule(s)
Serving Size
100
Servings
Amino acid/Protein
Product Type
0%
Evidence Coverage
Supplement Facts — Evidence Check
500 mg
📊 Market median: 500.0mg (143 products)
Other Ingredients
Gelatin
Cellulose
Medium Chain Triglycerides
Magnesium Stearate
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
Directions: Take one capsule daily or as directed by a health care professional.
⚠️ Warnings & Precautions
Warning: If you are pregnant or nursing, taking any medication, or have any medical condition, consult a health care professional before use.
Keep out of reach of children.
🧪 Formulation Notes
Bottled and packaged in the USA
L-Arginine is an amino acid and a nitric oxide precursor.
Twinlab L-Arginine capsules are easy to swallow.
No artificial colors, flavors, or preservatives added.
Supports nitric oxide production
Additional Information
Keep tightly closed in a cool, dry place.
Instagram @Twinlab Facebook TwinlabVitamins
New look, same great formula Best if used by date shown on bottle.
Product Details
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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