Acetyl L-Carnitine (ALCAR) is an acetylated form of L-Carnitine that is produced naturally by the body. This vegan-friendly formula combines 2,000mg of fermented ALCAR per daily serving with biotin and chromium to support normal macronutrient metabolism, vitamin B6 to support normal protein and glycogen metabolism, vitamin D for normal muscle function, as well as vitamin B2 and B3 to support the reduction of tiredness and fatigue.