Supplement Question: L-Arginine

L-arginine is a poop tier NO booster. The liver strips it out before your body can really use it. Citrulline is metabolized into L-arginine in your body and is a better NO booster.

Citrulline vs Arginine

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One serving has 400mg of L-Arginine HCL and L-Citruline Malate

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That's a toddler level of citrulline malate. I take 9,000 mg of pure l-citrulline in my pre-workout.

i take both but Ron is right that oral arginine is a pretty light contributor. its oral bioavailability is only 20%. so not nothing, but most gets filtered fairly quickly. L-citrulline can help with recycling of arginine and is also converted to arginine.

I think focusing on primarily on more citrulline consumption and dietary nitrites over arginine would be most important, with arginine supplementation as a secondary thought. This is assuming you are taking it for increased NO production. not sure why else you'd want to