l carnitine anxiety and Mental Health: Exploring Its Role, Benefits, and Risks in Neuropsychiatric Disorders Acetyl-L-Carnitine: Benefits and Side Effects
Description
Extracellular vesicles are capable of crossing the bloodbrain barrier [23], and LNPs, as well as exosomes, will exchange more readily in small diameter vessels with low flow rates (i.e., capillaries and small vessels) [24]

Velloso FJ, Trombetta-Lima M, Anschau V, Sogayar MC, Correa RG

COVID-19 and the cardiovascular system: an update
So each form of L-carnitine has its benefits