is l-carnitine the same as carnitine High Strength Liquid 5000 Mg, 16 Oz (473 ML) L-Carnitine 100.000 - 500 ml
Description
10.1002/hep.510250310

In three of the studies included in this systematic review, supplementation doses of 1 to 3 g of l-C or GPL-C over a period of 4, 8, or 24 weeks did not observe significant differences in moderate-intensity exercise performance parameters [23,30,34]

Overview of the mechanisms of oxidative stress: impact in inflammation of the airway diseases
[DOI] [PMC free article] [PubMed] [Google Scholar] 78.National Institute of Health - Office of Dietary Supplements