It is primarily found in the liver, where it plays a crucial part in detoxification processes
(2019) A randomised pilot trial to evaluate the bioavailability of natural versus synthetic vitamin B complexes in healthy humans and their effects on homocysteine, oxidative stress, and antioxidant levels, Oxidative medicine and cellular longevity, vol
[18] Gene-expression profiling shows it upregulates collagen types I, III, and IV and suppresses MMPs, mirroring retinol's effects via separate mechanisms
In one paper, concentration of the plasma Lp (a) was significantly reduced with the consumption of L-carnitine after 6 months compared with the placebo group,[] but two studies did not find any significant decrease compared with the placebo group.[ , ] Because of the inconsistency of the findings, further studies are necessary to reach a conclusive result