L-Arginine & L-Citrulline | GNC

Product Information



Increases nitric oxide production*
Helps maintain blood vessel tone*


Nutrition Facts
Serving Size  1 Caplet(s)
Servings Per Container  120

Amount Per Serving     % DV

L-arginine (as L-arginine hydrochloride)  500 mg   **
L-Citrulline  500 mg   **

** Daily Value (DV) not established.
Other Ingredients
Label (click image to enlarge)

How To Use

As a dietary supplement, take one to three caplets daily. For maximum support, take as directed every day.
KEEP OUT OF REACH OF CHILDREN, Consult your physician prior to using this product if your are pregnant, nursing, taking medication, or have a medical condition.
Distributed by: General Nutrition Corporation Pittsburgh, PA 15222


4.2 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Couldn't be better
Wonderful product, helping immensely with my overall health regimen
August 5, 2018
3 months ago
so far so well
working as well as I thought !!!!!!
May 30, 2018
5 months ago
Good supplement for working out
I have been taking this for about four months now and really notice a difference with my post-workout recovery. Tablet is not too big which makes it easier to take every day :)
January 17, 2018
9 months ago
I think it is good.
December 23, 2017
10 months ago
works good
August 19, 2017
1 year ago
Inclusion Body Myositis
I take this for myositis--there is no treatment for the kind of myositis I have--my disease progression has been slow--so maybe it is helping. There is no scientific way to evaluate whether it is this supplement or a host of others that I take.
July 19, 2017
1 year ago
Excellent Product
I take 1 pill 2x a day. As a vasodialator it has allowed me to keep my BP out of the danger zone [below 140]. I am a 65 year old male about 30 Lb overweight and do only moderate exercise every day. This has helped me tremendously!
May 31, 2017
1 year ago
I never received it
According to the tracking number 74899994595147029855 this item was delivered to my mail box at Tue 3/28/2017 11:20 am but B maybe the mailman mistakenly left it in another mailbox because I never received it. This is the first time happen with a GNC shipping. I don't know what to do. Seems to me that i lost my money and I'm afraid to put another GNC on line order. Maybe I will buy a similar product from another brand. Sorry
April 3, 2017
No Cange Yet
No Change after 10 days. Glad I'm not worse, but sorry I'm not better.
March 11, 2017
I have used them for about a week and they seem to be helping.
December 23, 2016
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 8 questions Browse 8 questions and 4 answers
Why did you choose this?
GNC Store
stamina. saw no benefit
a w on Apr 7, 2015
The L-Argentine helps with Erectile Dysfunction!
k e on Apr 4, 2015
stamina. saw no benefit
a w on Apr 7, 2015
it works
l e on Apr 5, 2015
The L-Argentine helps with Erectile Dysfunction!
k e on Apr 4, 2015
it works
l e on Apr 5, 2015
Does this work for erectile dysfunction?
A shopper on Aug 18, 2016
BEST ANSWER: I was told by my Urologist to give this combination of supplements a try for erectile dysfunction. I am going to give it a try and will report back after two weeks usage
what are the side effects of L-Arginine??
A shopper on Nov 18, 2016
Does it help with ED probelms?
Rodney H on Apr 17, 2018
Can the pills be crushed for easier ingestion?
A shopper on May 16, 2016
Is this product WADA-conform and Doping free; possibilities for cross-contamination with forbidden additive in Sport?
A shopper on Nov 1, 2016
I'm thinking of buying this product just for vascularity benefits ! would this be a good idea?
danny c on Sep 11, 2018
BEST ANSWER: I have been using the product for over a year. I am 62 and feel great and I now have no problem keeping up with my 42 year old girlfriend. My checkups have been amazing and my doctor wants to know what I do. Yes I would recommend L-Arginine & L-Citrulline.
Does this help with muscle mass ?
Kevin on Oct 8, 2018
does this product help Carpal Tunnel syndrome?
A shopper on Jul 11, 2018