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L-Arginine

product on market Capsule Orphic Nutrition Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 43% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

L-arginine and L-citrulline are supported by moderate evidence for improving blood flow and cardiovascular function. Niacin and calcium provide essential nutritional support for metabolic processes and bone health. Overall, these ingredients are well-researched, though the specific formulation's evidence coverage is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for L-Arginine
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
43%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

30 mg NE (188% DV)
2.1× RDA — within safe limits 196 studies (A:5, B:63)
Calcium
30 mg (2% DV)
400 mg
Market median: 500.0mg (143 products)
400 mg
Market median: 500.0mg (143 products)
Market median: 4002.0mg (1 products) 21 studies (A:0, B:2)
Market median: 2000.0mg (275 products)
80 mg
Market median: 1500.0mg (104 products) 21 studies (A:0, B:2)

Other Ingredients

Cellulose Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, take two (2) capsules once a day. For best results take 20-30 min before a meal with an 8 oz. 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.

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

L-Arginine is an amino acid that is popular among bodybuilders to promote blood flow to the muscles for a better workout. Orphic Nutritions L-Arginine is a Nitric Oxide Booster is formulated with Amino Acids & L Citrulline to provide you with the optimal formula for maximum results.

L-Arginine Blend 1340 MG

Blood Flow Support Supports Normal Blood Circulation & Energy levels Supports Vascularity & Performance Supports Blood Flow To The Brain & Heart

Additional Information

Get your FREE bottle at FREE.ORPHICNUTRITION.COM

STORE IN A COOL, DRY PLACE.

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Formulated in the USA

Recycle

Metadata

Product Details

UPC / SKUX002E8WE3N
DSLD Entry Date2023-05-24
Product TypeOther Combinations
FormCapsule
BrandOrphic Nutrition
DSLD ID285531
Data Updated2026-04-11
Research

Research Evidence

45
Research Sources
52
Avg Quality
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 PubMed DOI
A Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Meta Analysis The Cochrane database of systematic reviews 2017 PubMed DOI
B Nutritional interventions for treating foot ulcers in people with diabetes
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
B Nitric oxide donors (nitrates), L-arginine, or nitric oxide synthase inhibitors for acute stroke
Systematic Review The Cochrane database of systematic reviews 2002 PubMed
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2007 PubMed
B The Effect of Amino Acids on Wound Healing: A Systematic Review and Meta-Analysis on Arginine and Glutamine
Meta Analysis Nutrients 2021 PubMed DOI
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 PubMed
B Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Meta Analysis Nutrients 2023 PubMed DOI
B Arginine supplementation for prevention of necrotising enterocolitis in preterm infants
Systematic Review The Cochrane database of systematic reviews 2004 PubMed
B An Analysis of Popular Online Erectile Dysfunction Supplements
Systematic Review The journal of sexual medicine 2019 PubMed DOI
View all evidence for L Arginine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.