Does L-Citrulline Malate interact with L-Arginine?
Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Pick one· strong evidence
Citrulline raises arginine anyway.
L-citrulline converts to L-arginine in the kidneys and raises blood arginine more reliably than arginine taken directly, because oral arginine is largely broken down in the gut first. So pairing them adds little.
What to do
Use citrulline (around 6 to 8 g pre-workout); adding separate arginine on top gives little extra. Save the money and the pill count for a single effective dose.
Common questions
Can I take L-Citrulline Malate and L-Arginine together?
Pick one. Use citrulline (around 6 to 8 g pre-workout); adding separate arginine on top gives little extra. Save the money and the pill count for a single effective dose.
Why do L-Citrulline Malate and L-Arginine interact?
L-citrulline converts to L-arginine in the kidneys and raises blood arginine more reliably than arginine taken directly, because oral arginine is largely broken down in the gut first. So pairing them adds little.
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