L-Arginine Base

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What is L-Arginine?

L-Aginine, also simply known as Arginine, is an amino acid that is used in the biosynthesis of proteins. It is known as a semiessential amino acid and is commonly taken by bodybuilders to help increase muscle mass.


Arginine helps increase muscle mass and boost exercise endurance. It also supports the heart, immune system, and skin.

  • Helps increase muscle mass
  • Works to boost exercise endurance
  • Supports heart health
  • Fortifies immune function
  • Contributes to healthy skin

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Supplement Facts
Serving size: 500 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
L-Arginine...500mg *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 750mg one to three times daily on empty stomach, or as directed by physician.


As long as suggested serving sizes are adhered to, no adverse side effects should be experienced. However, taking too much Arginine may cause minor side effects such as upset stomach due to an accumulation of extra stomach acid. Arginine may also have the effect of altering levels of potassium, which can be particularly dangerous for those with liver issues. Those who are taking ACE inhibitors or diuretics and have kidney problems should not use Arginine unless required to do so by a doctor. Women who are pregnant or nursing should not take this supplement. Those who have recently had a heart attack or are taking performance enhancement or blood pressure medications should not take Arginine either.


This supplement is easily dissolved in water at higher temperatures. This supplement has been found to have a somewhat bitter taste. For this reason, it is best to mix it with a sweet citrus drink. Lemonade is probably the best drink for this situation, though some might suggest ditching the drink and taking Arginine capsules instead.


There is no guarantee of specific results and results can vary.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

California residents: Click Here for Proposition 65 warning.

Customer Reviews

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  • amino acids
  • heart
  • L-Arginine
  • Taurine
  • medice
  • irregular heartbeat
  • Dofetilide
  • heartbeat
  • rhythm
Lyndon M.
United States United States
I recommend this product

Regular heart rhythm

L-arginine and Taurine along with the medice, Dofetilide, have helped keep my heart beating regularly. Once I stopped taking those two amino acids and my irregular heartbeat returned. About 4 days after I resumed taking the amino acids my heartbeat returned to regular rhythm.

A BulkSupplements.com Customer
John D.
United States United States

Great prices and FAST shipping!!

Great prices and FAST shipping!!

Terry G. Smith

Great stuff

My review of this item is just like the rest: the quality, price, customer service, etc., is great. Just the kind of business I look for - so now I found it. And that's why I keep coming back. Have a great day, T. Smith


great value

excellent quality and value.

Angela B.

Great energy

This really worked for my husband in the gym, he also has so much energy in the bedroom

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