Frontiers Antioxidant therapy for infertile couples: a comprehensive review of the current status and consideration of future prospects regenerLife Acetyl L Carnitine Natural Factors USA Amazon.com: Perelel Fertility Support, Antioxidant Multivitamin with COQ10, N Acetyl L Cysteine (NAC) & Aa Berry, Women's Supplement, Soy, Dairy & Gluten Free, Non GMO, 60 Capsules : Health & Household Acetyl L Carnitine Acetyl L carnitine is a form of the amino acid L carnitine, which helps turn fat into energy and occurs in the body naturally. It is thought to help slow down the ageing process Carnitine traffic and human fertility ScienceDirect