L-Citrulline
L-Citrulline recycles into L-Arginine in the kidneys, raising nitric oxide more efficiently than arginine alone — for circulation, endurance, and sexual performance.
What It Is
L-Citrulline is a non-essential amino acid that bypasses first-pass breakdown in the gut and liver, then converts to L-Arginine in the kidneys. The result is a more durable rise in plasma arginine and nitric oxide than taking arginine by itself — the reason the two are paired in GOMAXXX.
Key Benefits
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Raises arginine & nitric oxide
Citrulline elevates plasma arginine more effectively than equivalent arginine, sustaining NO output.
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Supports endurance & output
In trained men, citrulline improved cycling time-trial performance and reduced subjective fatigue.
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Backs male blood flow
Better NO availability supports the circulation central to sexual performance.
How It Works
By entering the arginine–NO cycle downstream of gut metabolism, citrulline keeps nitric-oxide production elevated for longer. A double-blind crossover trial in trained men found 2.4 g/day improved 4-km cycling time-trial performance by ~1.5% with higher power output, while a single-blind clinical study reported improved male erection hardness with citrulline versus placebo.
The Bedroom Benefit
Citrulline is the engine behind sustained blood flow — supporting both training endurance and the sexual-performance circulation that arginine alone struggles to maintain.
In GOMAXXX
Dosed alongside L-Arginine so nitric-oxide support is reinforced and extended across a training session and the day.
Research & References
Download or read the peer-reviewed research and authoritative sources behind L-Citrulline.
- Download
[1] Suzuki T, et al. Oral L-citrulline supplementation enhances cycling time trial performance in healthy trained men
J Int Soc Sports Nutr, 2016;13:6
Free full text - Read
[2] Cormio L, et al. Oral L-citrulline supplementation improves erection hardness in men with mild erectile dysfunction
Urology, 2011;77(1):119–122
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary. Consult your healthcare professional before use.