is l carnitine effected by digestion L-Carnitine in Mitochondria Intestinal microbiota metabolism of l-carnitine,

Aging and amyloid beta-induced oxidative DNA damage and mitochondrial dysfunction in Alzheimers disease: implications for early intervention and therapeutics

34 Cellular studies have suggested that ALA may induce nuclear localization of nuclear factor erythroid 2-related factor 2 (NRF2), the most important transcription factor regulating genes that contain the antioxidant response element, thereby modulating peroxisome proliferator-activated receptors-regulated genes

Cardiovasc Drugs Ther 1991;5 Suppl 1:107-11

Comparing creatine vs L-carnitine supplements, it is possible to explain their advantages and understand which of the two is better to include in your routine

doi: 10.1016/j.bbadis.2011.10.001

Referncias Gabinete de Suplementos Alimentares do NIH