Acetyl L Carnitine & Alpha Lipoic Acid Acetyl L Carnitine Supplement (ALCAR) 500 mg Superior Labs Supplements and chronic pain: What does the research say? Some studies suggest possible benefits for: Acetyl L Carnitine (energy for cells; studied in diabetic nerve pain) Alpha Lipoic Acid (antioxidant; may ease nerve pain, Acetyl L carnitine physical chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Molecular Psychiatry L Carnitine Shows Promise as Supportive Therapy for Autism A clinical trial published in the journal Research in Autism Spectrum Disorders found that l carnitine supplementation may help reduce autism symptoms in children. The