Lately, Acetyl L-Carnitine, a known supplement, has attracted increasing attention. This supplement is a byproduct of L-Carnitine, an amino acid naturally present in the human body. Acetyl L ...

Even so, studies have shown that horny goat weed is a very weak PDE5 inhibitor and that it is largely ineffective in treating people with ED. L-carnitine is often used to enhance sports performance.