⚡ Unlock your workout’s full potential with every scoop!
Chemistry Labs L-Arginine Powder delivers 3 grams of lab-grade L-Arginine per serving, a key amino acid that boosts nitric oxide production to optimize blood flow and muscle performance. Perfect for mixing into custom pre-workout blends, this powder supports exercise endurance, recovery, and protein synthesis. Backed by GNC’s decades of scientific rigor, it’s a trusted choice for professionals seeking a clean, effective performance edge.
S**H
Good product
My energy levels during the workout increased.The thirst levels also increased.The taste is bland so it helps as well.
C**Y
Libido
For older gentlemen this is a great boost for libido. Would recommend 1 scoop daily in juice and add anything else you want in fruit drink. Very good product. Stay with the best.
T**C
Next best
I miss the older GNC L arginine. This definitely has no after taste like the other lesser brands
S**N
Good product and good taste
So glad I found this! I was taking 6 pills a day to get the dosage I need that I get with this in one scoop :) taste isn’t bad either just mix with something flavored.
E**C
It works
Good stuff, could tell the difference, it works...
C**N
Veins be popping
This stuff pumps you. Love it
B**9
Less than half full
The media could not be loaded. I haven’t tried this particular brand yet. Opened it to start using (My fav brand is out of stock and it is something that my Mayo cardiologist has me taking daily. 9grams/9000mg per day in 2 divided doses.) I am so disappointed that the product does not fill even half of the container.
A**T
Works
Used and lost 25 lbs.
Trustpilot
2 weeks ago
2 weeks ago
