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Swanson Ultra

Nitrosigine Inositol Stabilized Arginine Silicate

Nitrosigine Inositol Stabilized Arginine Silicate

Item |  SWU903

  • Patented arginine complex that raises the bar for heart and circulatory health

  • A bioavailable source of arginine and silicon

  • Go beyond ordinary arginine for superior cardiovascular support*

60 Tabs
Tabs Size: S

Now $14.99
Extra 25% Off
Was $19.99
MSRP $28.49
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In Stock

Supplement Facts

Serving Size 1 Tablet

  Amount Per Serving %Daily Value
Potassium (from Nitrosigine®) 30 mg <1%
Arginine Silicate Inositol(as Nitrosigine®) 750 mg *

*Daily Value not established.

Other ingredients: Dicalcium phosphate, stearic acid, microcrystalline cellulose (plant fiber), hydroxypropyl cellulose, magnesium stearate, aqueous film-coating (purified water, hydroxypropyl methylcellulose, vegetable glycerin), croscarmellose sodium, silica.

Suggested use: As a dietary supplement, take one tablet one to two times per day with water.

Nitrosigine® is a registered trademark of Nutrition 21, LLC., and is protected by U.S. patents: #5,707,970; #6,156,735; #6,344,444; and #7,576,132.

Printable Size Guide

Shipping Weight

.22 lbs

  • Patented arginine complex that raises the bar for heart and circulatory health

  • A bioavailable source of arginine and silicon

  • Go beyond ordinary arginine for superior cardiovascular support*

Swanson Ultra Nitrosigine® is a patented complex that binds arginine with silicate, unlocking powerful synergistic effects. It helps build nitric oxide levels over time to support healthy circulation and blood vessel integrity.*

For over 15 years, the amino acid arginine has been widely researched as a supporting agent for cardiovascular wellness.* Silicon is a well-established biological element recognized for its importance in connective tissue. Nitrosigine provides the benefits of both, along with additional benefits from the unique combination.

Arginine is converted in the body to nitric oxide which causes blood vessels to dilate or expand, to allow for optimal blood flow through the circulatory system.* Silicon is found concentrated within the arteries, where it helps make the inner lining of arterial tissue less permeable.* Together they help blood vessels relax and open to ensure healthy blood flow while protecting the structure of blood vessel tissue for long- term health and function.*

Nitrosigine has been clinically demonstrated to significantly raise nitric oxide levels, generating more blood flow to working muscles and supporting overall cardiovascular health.* With continued use, Nitrosigine has been shown to build nitric oxide levels over time, offering a long-term solution for cardiovascular maintenance.*


Rated 5 out of 5 by from Excellent With Citrulline Malate! This supplement does it all it's supposed to do and more. It has all the benefits of arginine but it's a LOT more reliable and much longer lasting! If you want even greater benefits or if you haven't had a positive reaction yet, take it together with Citrulline Malate 2:1 for sale here on Swanson. I take both with juice away from foods. Citrulline Malate 2:1 powder is a bit bitter but juice takes that away. Remember that supplements just supplement the good habits you keep. You have to be proactive and disciplined with your health.
Date published: 2017-02-02
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