

XL Real Muscle Gainer Max
Justified Laboratories
Overview
XL Real Muscle Gainer Max utilizes an 'L-Arginine Blend' containing various forms of arginine and related compounds. While L-Arginine can support nitric oxide production and blood flow, the effectiveness of this specific blend for 'real muscle gain' is questionable due to the lack of transparent individual ingredient dosages within the proprietary blend and the mixed evidence for L-Arginine's direct impact on performance and muscle growth in healthy, trained individuals.
The Good
Contains L-Arginine, which is a precursor to nitric oxide, potentially improving blood flow and nutrient delivery during exercise.
Includes various forms of arginine (L-Arginine, Arginine Alpha-Ketoglutarate, Arginine Ketoisocaproate) that may offer varied absorption kinetics and benefits.
The addition of Ornithine Alpha-Ketoglutarate (OKG) and Glutamine Alpha-Ketoglutarate (GAKG) may support recovery and reduce ammonia buildup.
The Bad
Proprietary blend hides specific dosages of individual L-Arginine forms, making efficacy assessment difficult.
L-Arginine, a primary ingredient, has mixed evidence for direct impact on exercise performance when taken orally, especially in healthy individuals.
AAKG's optimal dosage for performance is not well-established, and studies show inconsistent benefits.
Is it for you?
Best For: Athletes, fitness enthusiasts, individuals looking to gain muscle mass and strength
Skip If: You are pregnant, nursing, or have pre-existing medical conditions without consulting a doctor.
Ingredients Analysis
How to Use
Mix one scoop with 8-10 oz of water or your favorite beverage and consume before or after exercise.
Daily
Pre-workout or Post-workout
As directed on label, possibly with water or a shake
Who Should Use This
Best For:
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