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Doctor's Best, L-Arginine, 500 mg, 120 Bilayer Tablets

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In Stock
  • Expiration Date: Aug 2018
  • Shipping Weight: 0.47 lbs (0.21 kg)
  • Product Code: DRB-00200
  • UPC Code: 753950002005
  • Package Quantity: 120 Bilayer Tablets
  • Dimensions: 2.3 x 2.3 x 4.2 in, 0.4 lbs (0.18 kg)
Product Overview


  • Ortho┬╣
  • Science Based Nutrition
  • Dietary Supplement
  • Sustained Plus Immediate Release
  • Promotes a Healthy Cardiovascular System
  • Enhances Healthy Circulation
  • Supports Heart Function
  • Vegan
  • Non-GMO and Gluten Free

Sustained plus Immediate Release L-Arginine contains this conditionally essential amino acid in a bilayer tablet, with two tablets providing 500 mg of sustained release and 500 mg of immediate release L-arginine in a formula that allows for enhanced blood levels of this nutrient. Most supplemental L-arginine is quickly absorbed into circulation and is extremely efficiently metabolized, yielding only a short-lived boost to L-arginine levels. Sustained plus Immediate Release L-Arginine tablets are specifically manufactured to immediately increase blood levels of L-arginine and then to sustain this beneficial increase continuously over an 8-hour period.

L-arginine has been shown to support the cardiovascular system, promote vigorous heart function and enhance healthy circulation throughout the body through its conversion to nitric oxide. Research suggests L-arginine supplementation may also have positive benefits on athletic performance.

Suggested Use

Adult Use: Take 2 tablets once or twice daily, away from food, or as directed by a nutritionally informed physician.

Other Ingredients

Celluloses, stearic acid, silicon dioxide, magnesium stearate (vegetable source), croscarmellose sodium.

Contains nothing other than listed ingredients

Supplement Facts
Serving Size: 2 tablets
Servings Per Container: 60 servings
  Amount per serving % Daily Value
L-Arginine (as 500 mg immediate release and 500 mg sustained release from L-Arginine alpha-Keto-Glutarate) 1000 mg
† Daily Value not established.
iHerb Customer Reviews

Good product

Posted by 5518062310457587650 on Dec 20, 2016

I like it. It's easy to digest. Good value for the money.

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Exceptional for blood pressure

Posted by 4819352274995100532 on Dec 17, 2016

I ordered this for my husband. He was having an issue with high blood pressure. He took this and within 15min. (No kidding) his blood pressure is down to a healthy number both top and bottom. I love that this product is sustained release. A product that truly works if you need to naturally lower blood pressure.

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excellent product

Posted by 4905154551758397319 on Dec 08, 2016

Useful and helpful to use

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Very good

Posted by 4669693988845461808 on May 14, 2016

I have thyroid-adrenal issues and don't have enough energy for everyday life. This L-Arginine surprisingly gives me more energy and clearer thinking. Increases libido. No adverse reactions noticed.

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High Blood Pressure

Posted by 5720508950197905733 on Oct 02, 2014

I have had HBP for about five years with no help from Cardiologist so I started taking L-Arginine along with L-Citrulline and it helps control my BP Immensely. The best thing about these non drug tablets is that there are no side effects and I feel much better taking them. iHerb give me a quick delivery to Australia, they are efficient and the prices are very reasonable.I have been trying a lot of natural products to help my BP so read my report about Bergin whole raw Almonds. A natural product like this has also made a tremendous difference to my Bp and I can highly recommend them to anyone suffering with high BP

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