🟢 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

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

1.5 Gram(s) Serving Size
166 Servings
Amino acid/Protein Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Kyowa Quality
1.5 Gram(s)

Other Ingredients

Absolutely None

Label Claims — Verification

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

Target Groups

Vegetarian Adult (18 - 50 Years) Kosher Gluten Free Sugar Free

Product Information

📋 Directions for Use

Suggested Use: As a dietary supplement, take 1 serving with your favorite beverage 2-3 times daily, or as directed by your physician.

⚠️ Warnings & Precautions

Warning: Not intended for use by persons under the age of 18. Keep out of the reach of children.

If you are pregnant, breast feeding, have known medical conditions (including kidney or liver disease) or are taking prescriptions or OTC medication(s) consult with your health care practitioner before using this product.

Discontinue use two weeks prior to surgery.

🧪 Formulation Notes

Vegetarian

Gluten free Non-GMO Lactose free No excipients, no fillers, no artificial color, flavor or sweetener, no preservatives, sodium free, no sugar.

HPLC Lab Tested for Potency

Free of Harmful Impurities

OU (Kosher)

Additional Information

Kyowa Quality

Manufactured in our GMP & FDA inspected facility FDA registration: 16906175560 Made in USA

This product is sold by weight not volume. Some settling of contents may have occurred. Serving scoop included.

Store in a cool dry place.

Product Details

UPC / SKU 6 49908 23334 1
DSLD Entry Date 2022-12-13
Product Type Amino acid/Protein
Form Powder
Brand NutraBio
DSLD ID 278725
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 →

Compare Similar Products

View all L Arginine products →