l carnitine vs acetyl l carnitine for heart metabolism in hypertensive failure Acetylcarnitine - Wikipedia
Description
How long is the shelf life
Methods Eligibility criteria The PICOS strategy was defined as follows: P (participants) human subjects, I (interventions) oral LC treatment, C (comparisons) between supplementation and placebo, supplementation and control, or pre- and post- supplementation, O (outcomes) muscle variables, and S (study design) randomized controlled trials, non-randomized controlled trials, non-randomized non-controlled trials

Yes, and even particularly interesting

10.1186/s12888-019-2089-4 BMC Psychiatry 205 LiuY
