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 Alpha Lipoic Acid Erectile Dysfunction: What the Evidence and Experience Show Source Naturals Acetyl L Carnitine and Alpha Lipoic Acid 650 mg 120 Tablets Vitacost Acetyl L Carnitine & Alpha Lipoic Acid Metabolics Simple Truth Alpha Lipoic Acid & Acetyl L Carnitine HCl Capsules, 60 ct Kroger