NuSci ALC Acetyl L-Carnitine HCl Powder Pure Form (250 g (8.8 oz))

What the brand says

Acetyl-l-carnitine is a molecule that occurs naturally in body. It is an acetylated form of L-carnitine, a delivery both L-carnitine and acetyl groups with better bioavailability. The functions of L-carnitine include transport of long-chain fatty acids for energy productions in body.