amino acid

Arginine supplements

Half of the 1,455 arginine supplements in the NIH label database that print an amount list 500 mg or less per serving; the middle half list 167 mg to 1,000 mg (DSLD version 9.4.0, January 2026). The 191 products whose only supplement ingredient is arginine list a median of 1,000 mg.

How much arginine do supplements contain?

The median product lists 500 mg per serving. One in ten lists 32.52 mg or less, one in ten 2,348 mg or more. The amount printed most often is 1,000 mg (179 products).

Which products list the most arginine?

On-market products, per serving, with a plausible amount: the rule leaves out likely entry slips, such as an amount far beyond every other label with no %DV or strength on the label to back it (each product page still shows its own amount, marked).

• HMB Complex Natural Citrus FlavorGenestra Brands7,000 mg
• Muscle SynergyBeverly International7,000 mg
• Pure L-Arginine PowderDoctor's Best6,000 mg
• L-Arginine HCl Tropical FlavorThe Vitamin Shoppe6,000 mg
• L-Arginine PowderNOW Sports6,000 mg
• Muscle MemoryLife Priority6,000 mg
• L-Arginine Plus GrapeElements of Health Care5,110 mg
• RapidDrive Arginine 5000 UnflavoredGNC Pro Performance5,000 mg

Have the amounts changed over the years?

Products whose current label entered DSLD in 2011 list a median of 600 mg; those entered in 2025, 500 mg.

In which products and brands?

Brands listing it most: Douglas Laboratories (27), GNC Pro Performance AMP (27), GNC Beyond Raw (24), GNC Mega Men (23), GNC Pro Performance (20), NOW Sports (17), MET-Rx (15), GNC (13), Cellucor (12), Bronson (11).

Every product listing arginine

2,587 products, A to Z by name (page 23 of 52), each with the amount its label prints; an amount far outside what other labels print is marked as a possible slip.

• Klean IsolateKlean Athlete415 mg
• Kyolic B6, B12, Folic Acid & L-ArginingeKyolic · off the market200 mg
• Kyolic Formula 108Kyolic200 mg
• L-ArgicorWellgenix · off the marketin a blend
• L-ArginineIndiana Botanic Gardens · off the market500 mg
• L-ArginineIVL Institute For Vibrant Living500 mg
• L-ArginineBiotics Research Corporation700 mg
• L-ArginineMetabolic Maintenance750 mg
• L-ArginineGNC Mega Men1,000 mg
• L-ArginineHard Rhino3,000 mg
• L-ArginineDr. Mercola1,000 mg
• L-ArginineMyTrition500 mg
• L-ArginineSpring Valley500 mg
• L-ArginineHuntington Labs · off the market400 mg
• L-ArginineNutraChamps500 mg
• L-ArginineNutriCology500 mg
• L-ArginineDouglas Laboratories700 mg
• L-ArginineEnvy Nutrition400 mg
• L-ArginineNew Sun1,000 mg
• L-ArgininePure1,060 mg
• L-ArginineAllergy Research Group500 mg
• L-ArginineTwinlab500 mg
• L-ArginineOrphic Nutrition800 mg
• L-ArginineHerbadiet1,000 mg
• L-ArgininePure Encapsulations1,400 mg
• L-ArginineArazo Nutrition400 mg
• L-ArginineMillecor400 mg
• L-ArginineEarthborn Elements1,060 mg
• L-ArginineHavasu Nutrition400 mg
• L-ArgininePurus Labs2,000 mg
• L-ArginineNutraBio1,500 mg
• L-ArginineThorne1,000 mg
• L-Arginine & L-CitrullineGNC Mega Men500 mg
• L-Arginine & L-CitrullineGNC500 mg
• L-Arginine & L-OrnithineSwanson500 mg
• L-Arginine & L-Ornithine ComplexVSN Vital Strength Nutrition · off the market500 mg
• L-Arginine & L-Ornithine ComplexVitaCeutical Labs500 mg
• L-Arginine & L-Ornithine Complex With Alpha-Lipoic AcidVitamer Laboratories · off the market500 mg
• L-Arginine + Horny Goat WeedIrwin Naturals167 mg
• L-Arginine + L-Citrulline 750 mgNutricost500 mg
• L-Arginine + L-Ornithine 750 mgNutricost500 mg
• L-Arginine 1,000 mgAN Amazing Nutrition Amazing Formulas1,000 mg
• L-Arginine 1,000 mgNutricost1,000 mg
• L-Arginine 1,000 mgLuckyVitamin1,000 mg
• L-Arginine 1,000 mgSource Naturals1,000 mg
• L-Arginine 1,350 mgCarlson1,350 mg
• L-Arginine 1000GNC · off the market1,000 mg
• L-Arginine 1000 mgGood 'N Natural · off the market1,000 mg
• L-Arginine 1000 mgPuritan's Pride Premium1,000 mg
• L-Arginine 1000 mgNature's Bounty1,000 mg

Where next?

• Check an amount of arginine
• Labels above the upper limit
• All ingredients