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Arginine

19 benefits mapped to clinical evidence across supplements.

Serves the goals:Bone & JointCardiovascularCognitionEnergyEssential Health

Benefit Evidence

Vascular health
Strong

NO vasodilation +33%

BP/perfusion changes

ADMA/cGMP shifts

11,502 people
Heart health
Strong

LDL↓, TG−16.6%

Heart injury↓, stays−1d

Vasodilation↑, BP↓

13,023 people
Tissue repair
Strong

Perfusion+blood flow

Infections/LOS ↓

Collagen+healing ↑

7,930 people
Blood circulation
Strong

NO vasodilation +blood flow

BP↓; flow↑

+135% arginine, flow↑

6,451 people
Nutrient uptake
Strong

AA uptake +35%

Arginine levels rise

Nitrogen balance improves

6,622 people
Skin repair
Strong

Perfusion+healing

Infections↓,stay↓

6,671 people
Immune support
Strong

Immune cells↑, infections↓

CRP↓, arginine↑

6,410 people
Inflammation
Strong

Infection↓ CRP↓

IL-6/TNF-α↓

SIRS/MOF↓

4,185 people
Metabolism
Strong

Metabolism: glucose↓, insulin↑

Metabolism: arginine↓/fat↓

Metabolism: fatty liver↓

2,831 people
Blood pressure
Strong

Vasodilation, −10 mmHg

Renal flow, −29%

2,998 people
Healthy aging
Strong

NO/endothelial +, BP −

Muscle/bone/aging +

GH, glucose, mortality

1,368 people
Sexual wellness
Moderate

ED scores +5-12

Fertility/pregnancy +47%

Genital blood-flow ↑

976 people
Exercise recovery
Moderate

Amino acids ↑; signaling ↑

Recovery strength/endurance ↑

Infections/LOS ↓

930 people
Fertility
Moderate

Semen +47pp; pregnancy +19pp

Oocytes +3.2; fertilization higher

Birthweight +16%; litter +12-19%

1,129 people
Workout performance
Moderate

Endurance + vasodilation

Power/fatigue +14-35%

528 people
Energy & Fatigue
Moderate

Fatigue/Arginine ↓

Performance/Endurance ↑

348 people
Endurance
Moderate

Endurance capacity +14%

Exercise economy/strain reduced

Walking distance +32 m

321 people
Bowel regularity
Moderate

↑ urine flow/sodium

↓ renal blood flow

↓ bowel regularity

421 people
Focus & concentration
Moderate

Better focus, faster

Lower stress, steadier

411 people

Similar by evidence

Supplements the same benefits carry qualifying findings for — a fact about the evidence graph, not a recommendation to swap.

L-Carnitine

Shares 11 benefits: blood circulation, endurance, energy & fatigue, exercise recovery

Carnitine

Shares 11 benefits: blood circulation, endurance, energy & fatigue, exercise recovery

Pine Bark Extract

Shares 10 benefits: blood circulation, blood pressure, endurance, energy & fatigue

Astaxanthin

Shares 10 benefits: blood circulation, endurance, energy & fatigue, exercise recovery

Citrulline

Shares 10 benefits: blood circulation, blood pressure, endurance, energy & fatigue

Urolithin A

Shares 10 benefits: endurance, energy & fatigue, exercise recovery, focus & concentration

Products with Arginine

Search all

56 products whose verified label declares Arginine — not every bottle that mentions it in a title.

NOW Foods

NOW Foods Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor*

L-Arginine 1 g · L-Arginine Hydrochloride 1250 mg

$17.04L-Arginine

Garden of Life

Garden of Life Organic Vegan Protein Powder, Plant Based & BCAAs

Includes 0g Added Sugars 0 g · Vitamin D 10 mcg · Calcium 30 mg +53 more

$29.06Pea

Beverly International

Beverly International UMP Protein Powder, Vanilla, 32.8 oz

Calcium 350 mg · Magnesium 120 mg · Ultimate Protein System Blend 22.4 g +10 more

$46.95Blends

Wellgenix

Wellgenix Balanced Essentials Liquid Multivitamin & Minerals, 32 Fl Oz

Vitamin A 5000 IU · Vitamin C 120 mg · Vitamin D 400 IU +125 more

$37.95Diet & Sports Nutrition

Kyolic

Kyolic Aged Garlic Extract Total Heart Health* Formula 108

Vitamin B6 20 mg · Folate 1000 mcg DFE · Folic Acid 600 mcg +3 more

$16.07Garlic

Source Naturals

Source Naturals, L-Arginine L-Citrulline Complex 1,000 mg

L-Arginine 750 mg · L-Citrulline 250 mg

$30.79L-Arginine

Being studied right now

Recruiting clinical trials registered on ClinicalTrials.gov. A trial in progress has no result yet — this is what the field is asking, not what it found.

Effect of a Food for Special Medical Purposes on Muscle Mass Preservation During GLP-1 RAs Weight Loss TreatmentArginine · Obesity & Overweight · 144 participants planned · ClinicalTrials.govRecruitingPre-habilitation Within ERAS Protocol for Gynecologic Oncology Surgery: The Pre_ERAS StudyArginine · ERAS, Compliance, Quality of Life (QOL) · 100 participants planned · ClinicalTrials.govRecruitingDaily Amino Acid Supplementation for People With Parkinson's DiseaseArginine · Parkinson Disease (PD) · 30 participants planned · ClinicalTrials.govRecruiting