x nutri l carnitine Nutrex Lipo-6 60 Capsules 6 Carnitine by Nutrex is an excellent supplement based on l Nutrex Liquid L-Carnitine 3000 Strawberry
Description
If you have the MTHFR polymorphism, you could benefit from the active form of folate (5-MTHF or methylfolate), which may be more bioavailable

A reversible form of axon damage in experimental autoimmune encephalomyelitis and multiple sclerosis

(PubMed) Upston JM, Terentis AC, Stocker R

Both promise to boost your performance, but they work in completely different ways

Further longer term, larger scale and preferably multi-center studies are recommended to explore additional benefits, meanwhile it is prudent to advise L-carnitine supplementation for such patients