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GNC Pro Performance® L-Arginine L-Ornithine image
 
(based on 5 ratings)
Brand: GNC PRO PERFORMANCE
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  • L-Arginine and L-Ornithine are two amino acids that are a popular choice among bodybuilders, weightlifters and serious athletes.
  • L-Arginine is involved in the removal of ammonia from the body and is also involved in the production of creatine.
  • L-Ornithine has been added to provide additional dietary support.
  • Each serving contains 1500 mg of free-form L-Arginine and 1000 mg of free-form L-Ornithine.
Review Snapshot®
Avg. Customer Rating:
 
4.2 stars
(based on 5 reviews)
100% of respondents would recommend this to a friend.

Customers most agreed on the following attributes:

Pros:
Good value(3)
Best Uses:
Daily use(4)
 
Works Great
By stsharff from Seaford, DE on 9/15/2011
Pros:
Works
Cons:
4 pills daily
Best Uses:
Post-workout, Pre-workout
Bottom Line:
Yes, I would recommend this to a friend

Comments about GNC PRO PERFORMANCE GNC Pro Performance® L-Arginine L-Ornithine:

Pill will crumble if exposed to air, ie. pill case. I travel a lot and just leave it in the bottle that it comes in and all is well.

Trainer has me take 2 pre/post workout. 3 evenly spaced out during off days.

 
It Helps!
By psnaa2Verified Purchaser from Las Vegas, NV on 9/1/2011
Pros:
Easy To Take, Good Value
Cons:
None
Best Uses:
Daily Use
Describe Yourself:
Competitive Athlete
Bottom Line:
Yes, I would recommend this to a friend

Comments about GNC PRO PERFORMANCE GNC Pro Performance® L-Arginine L-Ornithine:

At 40 years old I've been working out for more than half of my life. Even with all of the exercise & cardio that I do my family has a history of high cholesterol. I've been taking L-Arginine in both the powder & tablet form for some time now. After my last physical I was once again given a "great" bill of health. I attribute that to both my intense workouts and this suppliment. For the value you cannot beat GNC's combo L-Arginine / L-Ornithine tablet. I take it daily without fail.

[0 of 1 customers found this review helpful]

 
So so....
By tylerhengVerified Purchaser from Lincoln, NE on 7/14/2011
Pros:
Easy To Take, Helps With Fatigue
Cons:
Not Effective
Best Uses:
Daily Use, Post-workout, Pre-workout
Describe Yourself:
Competitive Athlete
Bottom Line:
Yes, I would recommend this to a friend

Comments about GNC PRO PERFORMANCE GNC Pro Performance® L-Arginine L-Ornithine:

The only noticeable difference I felt were that I thought it helped me recover faster from my workouts. There are better values out there with generic products though.

 
Continuous Strength
By ryanmatthewkVerified Purchaser from Middletown, NY on 7/8/2011
Pros:
Good Value, Helps With Fatigue
Best Uses:
Daily Use
Describe Yourself:
Weekend Warrior
Bottom Line:
Yes, I would recommend this to a friend

Comments about GNC PRO PERFORMANCE GNC Pro Performance® L-Arginine L-Ornithine:

Good Product, helps to keep strength up during workout.

[2 of 8 customers found this review helpful]

 
Good nighttime supplement.
By kellyraye88 from Kansas City, MO on 5/5/2010
Pros:
Easy To Use, Effective, Good Value
Best Uses:
Daily Use
Describe Yourself:
Budget Buyer
My Beauty Routine Takes:
10 Minutes
Bottom Line:
Yes, I would recommend this to a friend

Comments about GNC PRO PERFORMANCE GNC Pro Performance® L-Arginine L-Ornithine:

I feel like I get quality sleep when I take this on an empty stomach 30 mins before bed.

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