Exploring Zn(II) Acetyl l carnitine complex for simultaneous management of depression, chronic pain, and neuroprotection ScienceDirect 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 Low Acetyl L Carnitine Levels May Be Linked to Depression Psychiatric News Acetyl L carnitine in chronic pain: A narrative review ScienceDirect Amazon.com: aSquared Nutrition Acetyl L Carnitine 1000mg Per Serving Max Strength 200 Veggie Capsules High Dosage Acetyl L Carnitine HCL (ALCAR) Supplement Pills to Support Pure Energy, Brain Function : Health