Acetyl L Carnitine Superior Supplement Products Science First Designs for Health Acetyl L Carnitine Carotec, Inc. Acetyl L carnitine is also known as ALC. It is used by some people with high blood sugar to help with cholesterol as well as nerve pain, such as tingling in their hands and feet. Others have used it Acetyl L Carnitine HCL 500mg per serving 180 Capsules GNC Acetyl L Carnitine 500Mg 60 Capsules (60 Servings)