L-Arginine gets more attention in supplement marketing, but ErecPower's formula leans on L-Citrulline. Here's why that's a deliberate choice.
Taken orally, L-Arginine is broken down significantly in the gut and liver before it reaches the bloodstream, limiting how much actually raises nitric oxide levels.
L-Citrulline bypasses much of that breakdown. The body converts it to L-Arginine in the kidneys, which research has shown raises blood arginine levels more effectively than taking arginine directly.
Studies on L-Citrulline have looked at both exercise performance and circulation-related outcomes, including a notable 2011 study on erection hardness in men with mild erectile dysfunction.
Choosing citrulline over arginine reflects the actual pharmacokinetics, not just marketing preference. It's a reasonable formulation choice grounded in how the body actually processes each compound.