No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.

Oops!

We are having trouble processing your request.

Our apologies!

Please try again later.

Doctor's Best

Sustained Plus Immediate Release L-Arginine

Item | DB113

$15.59
Qty
Size
 

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) 1,000 mg

† Daily Value not established.

Other Ingredients: Microcrystalline cellulose, stearic acid, silicon dioxide, magnesium stearate (vegetable source), croscarmellose sodium, modified cellulose (coating).

Suggested Adult Use: Take 2 tablets daily, away from food, or as recommended by a nutritionally-informed physician.

Store in a cool dry place.

  • Non-GMO
  • Gluten Free
  • Soy Free
  • Vegan
  • Bilayer Tablets
  • Science-based nutrition



  • Promotes a healthy cardiovascular system



  • Enhances healthy circulation


Sustained Plus Immediate Release L-Arginine from Doctor's Best delivers the amino acid in a bilayer tablet, with two tablets providing 500 mg of sustained release and 500 mg of immediate release L-arginine. This formula allows for enhanced blood levels of this nutrient. 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 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. Vegan. Non-GMO. Gluten free.

Terms and Ingredient Definitions

Shipping Weight: .39 lbs

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.

MSRP: $29.99

For our website and catalog, the MSRP is the "Manufacturer's Suggested Retail Price." The MSRP is understood to mean the price at which a manufacturer will recommend a retailer sell a product for in stores, on the internet, or in catalogs. The MSRP of National brand items are dictated to Swanson by each manufacturer. For Swanson brand items, the MSRP is calculated based on a varying percentage above the product's base price.

Rated 5 out of 5 by from Great Product! The L-Arginie sustained plus immediate release has been wonderful for me. It really helps my breathing and stamina.
Date published: 2016-03-19
Rated 5 out of 5 by from Excellent product. The immediate release plus sustained feature is most welcome. I take 2 per day with very good results.
Date published: 2013-04-17
Rated 5 out of 5 by from Wonderful Can definitely tell a difference in my stamina when taking.
Date published: 2013-03-14
Rated 4 out of 5 by from my body must have been starved for this The first few times taking this product I definitely felt better (more alert, cleaner at a cellular level). But, after the first few times, I really don't notice anything anymore. Perhaps the deficiency was satisifed? Perhaps I need to increase the dosage?
Date published: 2013-02-10
  • y_2019, m_8, d_20, h_1
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_1, tr_4
  • loc_en_US, sid_DB113, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_swansonhealth
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 12ms
  • REVIEWS, PRODUCT

Swanson Health started in 1969 in Fargo, ND with a mission to offer pure and potent health products at a great value. Nearly 50 years later, we continue to innovate science-backed vitamins and supplements, delivering wellness solutions that help people live simply healthier together, and find vitality at any age. Click here to learn more about us.

For nearly 50 years, Swanson Health's research and development team has delivered science-backed health and wellness products to people around the world. Our innovation is guided by clinical research, scientific consensus, emerging research and usage traditions, creating products that help you find vitality at any age. At Swanson, we don't hide our science behind proprietary formulas — we believe in easy-to-read, transparent labelling. What's printed on our labels, is exactly what you'll find in our products.

Swanson Health's purity and potency testing begins with our ingredient sourcing, continues through manufacturing, and goes beyond when a product hits the shelf. Our testing exceeds industry standards, ensuring each product meets our quality guarantees for purity and potency. Swanson facilities are Good Manufacturing Practices (GMP) certified, and we voluntarily participate in third-party, independent laboratory testing. With Swanson, you can be sure you're getting the most pure and potent health products at a great value. Click here to learn more about our quality standards.

®

Easy Refill

  • Get your favorite products delivered automatically
  • 10% off future orders of Swanson brand products in your subscription
  • FREE standard shipping on all future orders over $50
  • Control the frequency, delivery date, item quantity... or cancel at any time
  • Email reminders before each delivery
See all FAQs here