The carnitine shuttle. l carnitine and acetyl l carnitine enter the Download Scientific Diagram L Carnitine Injection Levocarnitine IV Mitochondrial control of fuel switching via carnitine biosynthesis Science Frontiers The efficacy of orally administered L carnitine in alleviating ovarian dysfunctions has laid the foundation for targeted in vivo use: a study employing self control and propensity score matching Acetyl L carnitine physical chemical, metabolic, and therapeutic properties: relevance for its mode of action in Alzheimer's disease and geriatric depression Molecular Psychiatry Acylcarnitinesold actors auditioning for new roles in metabolic physiology Nature Reviews Endocrinology