Sustained plus Immediate Release L-Arginine
Doctor's Best

Sustained plus Immediate Release L-Arginine , 120 Bilayer Tablets

Popular Amino Acid!
Provides Support For Muscle Gain While Limiting The Storage Of Fat!*
9.2  out of 10  (6 Reviews)

Product Overview


Sustained plus Immediate Release L-Arginine contains the amino acid arginine in a sustained release and immediate release form to promote sustained blood levels of this nutrient to support healthy cardiovascular function.*

Ratings & Reviews

Overall Rating
6 Ratings
Verified Buyer Rating
5 Ratings
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Jun 19, 2015
Verified Buyer

Its good product to add to your daily mix, its boost up the energy level and stamina.

Mar 31, 2015

Tried a handful of the Doctor's Best products and the quality is there for sure! Great way to add single ingredients to your daily supplements.

Jan 07, 2014
Verified Buyer

Definitely seemed to make cardio easier. Helped improve blood flow.

Jan 06, 2014
Verified Buyer

It seems to do the job, but the results aren't spectacular for the price. I would suggest getting a pre-workout with L-Arginine in it already, such as N.O. Xplode. I think C4 and Optimum platinum pre have L-Arginine as well.

Jan 06, 2014
Verified Buyer

Me and my friend tried this and could notice a better pump and little extra energy.

Dec 23, 2013
Verified Buyer

seems to work for me, seems like better pumps. id buy it again.

1 Size
120 Bilayer Tablets
Choose a Size
{{group.violatorText}} {{}}
Choose a Flavor
Flavor Rating: {{sku.flavorRating | flavorRating}}
Was:  {{}}
Price: $17.72  ($0.30 / Serving)
Flavor Rating:

What's in Doctor's Best Sustained plus Immediate Release L-Arginine

120 Tablets
Serving Size 2 tablets
Servings Per Container 60 servings
Amount Per Serving Daily Value
L-Arginine (as 500mg 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)

Directions For Sustained plus Immediate Release L-Arginine: Take 2 tablets daily, away from food, or as recommended by a nutritionally-informed physician.

* 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.
Learn more about L-Arginine.
Check out other Improve Workout Products.