ALCARAcetyl L-Carnitineopen_in_newnon-nutrient_non-botanicalAcetyl L-Carnitine (ALCAR) is an acetylated version of L-carnitine, an amino acid derivative the body produces naturally. It assists with cellular energy by transporting fatty acids into the mitochondria and can cross the blood-brain barrier to support cognitive function...$29.88 median price$0.90 per serving500 mg per serving