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 The Rockefeller University Lack of a single molecule may indicate severe and treatment resistant depression NOW ALCETYL L CARNITINE 500MG, 50 VEG, WHY DO YOU SHOULD USE THIS SUPPLEMENT!?, Helpful to person who suffered from Alzheimer diseases, Improving memory, Improving thinking skills, Treating L Carnitine Linus Pauling Institute Oregon State University