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21st Century   L-Arginine 1000 mg - 100 Tablets

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9 Reviews

"Excelent for circulation and cardiac condition"  Read all reviews

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Item Number: CEN1112
Serving Size: 1 Tablet Servings per Container: 100
Price per Serving:  $0.08 Price per Unit*: $0.08 per Tablet
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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Regular Price:  $11.99 $8.31
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L-Arginine Tablets from 21st Century® might boost the immune system and reduce fatigue caused by exercising. L-Arginine is an essential amino acid‚ which means that it needs to be obtained from foods. L-Arginine may be found in buckwheat‚ wheat germ and flour‚ milk‚ yogurt‚ seafood‚ nuts‚ and chickpeas.

Apart from these natural sources‚ you may obtain l-arginine from supplements like this one from 21st Century®. This amino acid may promote muscle metabolism and support the transportation‚ storage‚ and removal of nitrogen from your system.

L-Arginine could remove toxic ammonia from the body‚ promote the secretion of various hormones (like insulin and growth hormones)‚ and improve muscle contraction. L-arginine is converted to nitric oxide‚ in the body‚ which may help the blood vessels open wider to improve the flow of blood. This could in turn support cardiovascular health.

L-Arginine Tablets from 21st Century® does not contain gluten‚ sugar‚ salt‚ preservatives‚ or artificial flavors.

These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.

  • MFG # 530348
  • UPC # 740985270868
Official Website:

Serving Size: 1 Tablet

Amount Per Serving / % DV

L-Arginine (From L-Arginine Hydrochloride) 1000mg / **

**Daily Value (DV) not established.

Other Ingredients: Cellulose‚ croscarmellose sodium‚ stearic acid. Contains <2% of: Magnesium stearate‚ PEG‚ pharmaceutical glaze‚ polyvinyl alcohol‚ silicon dioxide‚ talc‚ titanium dioxide.

Gluten-Free / No Added Sugar.

As a dietary supplement‚ adults one (1) tablet with any meal‚ up to three (3) times daily or as directed by a healthcare provider.

Do not exceed recommended dosage.

Consult a healthcare provider prior to use if pregnant‚ nursing‚ or medications‚ have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children.

Do not use if product appears to be tampered with or seal is broken.

Store at room temperature.

  • Gluten Free
  • No Added Sugar

Ratings and Reviews

Write a Review
  • 4.9
5 9
  • 9 Reviews
    • Verified Buyer


      from Bayamon on 5/20/2019
      Excelent for circulation and cardiac condition
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      L-Arg Really Works!

      from LOS ALAMITOS CA on 12/16/2018
      I felt results about 2 wks after taking L-Arginine 1000 mg by 21st Century. My stamina & was not affected by hot weather while playing tennis on hot days; others had trouble in heat but I didn't feel any different than when normal temp. Never got fatigued after taking it. Like taking it with Pine Bark because research studies say L-Arg works even better with it. Highly recommend L-Arginine for exercise. Added bonus in the bedroom too.


      Added stamina when exercising & makes me immune to hot days. Good price too.


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Just take one a day!

      from VAUGHN WA on 1/10/2018
      I love the potency because it's so much easier to just have to take 21st Century L-Arginine 1,000 mg one a day.




      review-checkI would recommend this item to a friend.
    • Verified Buyer


      from Henderson NV on 12/14/2017
      L-Arginine 1000 mg by 21st Century has eased my joints.


      Very simple to use.


      review-checkI would recommend this item to a friend.
    • Verified Buyer

      I need my daily dose of this product

      from Pine Grove CA on 11/10/2017
      L-Arginine 1000 mg by 21 Century gives me energy and you don't get the shakes.


      Having it in pill form, you can break it in half. It doesn't fall apart and dissolve when exposed to air.


      The price has increased!
      review-checkI would recommend this item to a friend.
    • My review.

      from 9721 Martinique dr on 9/08/2015
      For the 5 days I have taken L-Arginine by 21st Century when I time my self for my work outs for example its 12:30pm I take 1000mg tablet on an empty stomach (except water and blue green algae at 9am). And then I proceed with my workout at 3:30pm to 5:00pm.


      I like that I can time when I want to boost my self and my workouts. I like that the effects when paired with working out and getting that boost are doing for my health.


      review-checkI would recommend this item to a friend.
    • Superior Quality and Price

      from Beverly Hills, CA on 12/26/2014
      L-Arginine is one of the most important supplements I take to improve my athletic performance and is the most significant NO supplement for heart health. My first choice is always Century each and every time!


      Great price along with superior quality!


      review-checkI would recommend this item to a friend.
    • First Time

      from Mount Vernon il on 12/02/2014
      This is my first time using L-Arginine by 21st Century. 
      review-checkI would recommend this item to a friend.
    • Verified Buyer

      Great product ,great price!

      from New York City on 9/10/2014
      Great experience with century 21st product,very good quality for an awesome price.
      review-checkI would recommend this item to a friend.

Customer Questions and Answers

Please ask any questions you may have about this specific product in the field below.

Your question(s) and our corresponding answer(s) will not be confidential and will be posted publically on this specific product page.

Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

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.

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