What’s the right L-citrulline dosage for ED? Is it really effective? Those questions would most likely have popped-up in your head upon reading the title for this article. After all, what could citrulline malate, a non-essential amino acid, do for erectile dysfunction? Well, it turns out that L-citrulline plays a crucial role in vasodilation. And, as previously mentioned in one of our articles, vasodilation is an important bodily function to focus on when it comes to fighting erectile dysfunction.