What is the function of propionyl L-carnitine?

Propionyl L-carnitine facilitates energy production in the body, according to WebMD. It also enhances the functioning of the heart and facilitates body processes such as muscle movement and blood circulation.

Propionyl L-carnitine is a natural amino acid produced by the human body, as stated by WebMD. When taken in supplemental form, it helps to treat leg pain that results from poor blood circulation due to diabetes or atheroclerosis. It also helps in the treatment of congestive heart failure, chronic fatigue syndrome as well as diabetes related erectile dysfunction in males. When used along with acetyl L-carnitine, it helps to boost testosterone levels in older males.