

L-Arginine & L-Citrulline
GNC
Overview
This product provides L-Arginine and L-Citrulline, which are intended to support nitric oxide production and improve blood flow. While these ingredients have some scientific backing for improving vasodilation and potentially athletic performance or cardiovascular health, the dosage in this product might be inadequate for significant effects, and other products with higher doses may be more effective.
The Good
May mildly enhance blood flow.
May support vascular health.
Contains two complementary ingredients to support nitric oxide production.
The Bad
Dosing may be too low for some individuals.
May cause mild gastrointestinal discomfort in some people.
Limited impact on athletic performance at the provided dose.
Is it for you?
Best For: Individuals seeking cardiovascular support, those over 50, men's health support
Skip If: You have pre-existing health conditions or are on other medications without consulting a doctor
Ingredients Analysis
L-Arginine
500 mgL-Citrulline
500 mgHow to Use
Take caplets as a dietary supplement. Consult a healthcare provider for specific dosage instructions.
Daily
Anytime
As directed by a healthcare professional
Who Should Use This
Best For:
Recommended Articles

Top NSF & Informed-Sport Certified Supplements
NSF Certified for Sport and Informed-Sport certifications ensure supplement safety and efficacy for athletes.

Top Energy-Boosting Supplement Ingredients
Caffeine and natural ingredients like vitamins and plant extracts are key in energy supplements.

Best Time to Take Caffeine for Workouts
Consume caffeine 60 minutes before workouts at 3-6 mg/kg body weight for peak performance.

Optimal Timing for Pre-Workout Before Fasted Cardio
Taking pre-workout supplements 30-60 minutes before fasted cardio optimizes performance and metabolism.