GNC Acetyl L Carnitine Alpha Lipoic Acid: Mood Support Supplement GNC Culter Liquid Carnitine NutriCartel Frontiers Carnitine and Depression Frontiers L Carnitine and Acetyl L Carnitine: Potential Novel Biomarkers for Major Depressive Disorder People who live with depression have low blood levels of a specific molecule, new medical research has revealed. It's called acetyl L carnitine, and those with particularly severe, treatment resistant or childhood onset depression were