is l-carnitine synthetic Carnitine is a naturally occuring form of L The endogenous synthesis of carnitine.
Description
Genomic structure, alternative maturation and tissue expression of the human BBOX1 gene
[DOI] [PubMed] [Google Scholar] 105.Ferreira GC, McKenna MC

Therefore, if you have a history of heart issues, high blood pressure, or kidney disease, you must consult your doctor before starting this supplement

Levocarnitine use is associated with improvement in sarcopenia in patients with liver cirrhosis

doi: 10.1002/mnfr.201600324
