You will find more to acetyl-L-carnitine advantages than meets the eye. That's to say, you shouldn't just maintain this in high regards due to its body reducing efficiency but also for its other many health benefits. What's l carnitine liquid? Scientifically speaking, acetyl-L-carnitine or ALCAR is an acetylated version of L-carnitine. In layman's term, this can be a more potent form of L-carnitine in regards to its bioavailability.