Sustained plus Immediate Release L-Arginine 500 mg®
Amino Acids & ProteinBrand: Doctor's Best
Net Contents
120 Bilayer Tablet(s)
Serving Size
2 Tablet(s)
Servings Per Container
60
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
7 53950 00200 5
Product Version
R 04/13
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegetarian.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 2 Tablet(s) · 1–2 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Arginine | 1000 mg | — |
| immediate release L-Arginine Alpha-Keto-Glutarate | 500 mg | — |
| sustained release from L-Arginine Alpha-Keto-Glutarate | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Adult Use: Take 2 tablets once or twice daily, away from food, or as directed by a nutritionally informed physician.
Formulation
Formula re: Contains
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.
Formulation re: Vegetarian/Vegan
Suitable for Vegetarians
FDA Statements
FDA Disclaimer Statement
*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.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
General Statements: All Other Content
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.*
Brand IP Statement(s) re: (c), (TM), (SM)
Science-Based Nutrition(TM)
General Statements: All Other Content
PROMOTES A HEALTHY CARDIOVASCULAR SYSTEM* ENHANCES HEALTHY CIRCULATION* SUPPORTS HEART FUNCTION*
General Statements: All Other Content
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General Statements: All Other Content
CONTAINS NOTHING OTHER THAN LISTED INGREDIENTS
General: Product/Version Code
R 04/13
Manufacturer & Distributor
Distributor
Doctor's Best, Inc.
San Clemente, CA, 92673
(800) 777-2474
Market Reference
Doctor's Best L-Arginine Sustained Plus Immediate Release Bilayer Tablets
Professional Supplement Center4.8(423)$19.99Doctor's Best L-Arginine Powder
Vitacost.com4.7(1000)$18.99LowestDoctor's Best Fast Acting Arginine Complex with Nitrosigine
Target4.8(268)$19.99Doctor's Best L-Arginine Sustained & Immediate Capsules
Shipman's Pharmacy$28.48Doctor's Best, Fast Acting Arginine Complex with Nitrosigine, 750 mg, 60 Tablets
Herbkart.com4.8(268)$120.50
Where to Buy Locally
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Holland & Barrett - Grimsby
3.5 (17)Vitamin & Supplements Shop
Frederick Ward Way Friargate Freshney Place Shopping Centre 61, Grimsby DN31 1ED
Predator Nutrition Sports Supplements
4.3 (584)Vitamin & Supplements Shop
Thornes Farm Way, Leeds LS9 0AN
Discount Supplements
4.1 (39)Vitamin & Supplements Shop
Clay St, Hull HU8 8HA
Tesco Superstore
3.7 (46)Supermarket
kennedy way, Washdyke Ln, Immingham DN40 2AB
Optimum Health Supplements
4.9 (39)Vitamin & Supplements Shop
Unit 4 Phase, 2 Exchange Rd, Lincoln LN6 3JZ
Power Health Products
4.7 (11)Vitamin & Supplements Shop
Airfield Estate, Pocklington Industrial Estate, York YO42 1NR
Holland & Barrett - Cleethorpes Tesco
4.4 (7)Vitamin & Supplements Shop
Store C/O TESCO, Hewitts Circus Retail Park, Hewitts Ave, Humberston, Cleethorpes DN35 9QR
Holland & Barrett - Hull St Stephens Tesco
3.3 (7)Vitamin & Supplements Shop
Ferenway C/o Tesco 110, Hull HU2 8LN
Research & Studies
Paediatric formulations of L-arginine for the use in urea cycle disorders
QA Hussein - 2009 - docserv.uni-duesseldorf.de
… , innovative granules, conventional immediate release, modified release tablets and capsules, make … Arginine is medical supplement rather than drug approved by FDA or EMEA, and …
20092 citationsRandomized, double-blind, placebo-controlled study of arginine supplementation in chronic renal failure
L De Nicola, V Bellizzi, R Minutolo, M Andreucci… - Kidney international, 1999 - Elsevier
… Supplementation with L-arginine (ARG) strikingly ameliorates proteinuria and glomerulosclerosis in remnant rats by overcoming nitric oxide (NO) deficiency. Whether or not the same …
199965 citationsBiochemical responses of healthy subjects during dietary supplementation with L-arginine
RW Evans, JD Fernstrom, J Thompson… - The Journal of nutritional …, 2004 - Elsevier
… However, the optimal level of L-arginine supplementation is unclear. The objective of this … of healthy individuals to increasing doses of L-arginine (as free acid). Twelve healthy subjects …
2004127 citationsEffects of in vivo and in vitro L-arginine supplementation on healthy human vessels
JPF Chin-Dusting, CT Alexander… - Journal of …, 1996 - journals.lww.com
… We studied the influence of dietary L-arginine (L-ARG) supplementation on forearm resistance arteries in vivo and the effect of exogenous addition of L-ARG to subcutaneous arteries …
1996136 citationsClinical study on the efficacy and safety of arginine administered orally in association with other active ingredients for the prevention and treatment of …
C Bologna, E Pone - Healthcare, 2022 - mdpi.com
… in combining L-arginine with other … L-arginine supplementation has been shown to play a favorable role in regulating immune responses. In a similar way, both vitamin C and L-arginine …
202215 citationsL-Arginine
GD AZ, DI Checker, PL Tool - rxlist.com
… Supplementing a feeding tube with L-arginine does not seem to improve immune function, … for up to 10 days reduces stress and anxiety in healthy people and those prone to stress. …
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2013-08-23. DSLD Label ID: 25019. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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