l-carnitine research articles The bright and the dark sides of supplementation: a systematic review | Journal of the International Society of Sports Nutrition L-Carnitine: Everything You Need to
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This also means that by adjusting and optimizing ferulic acids chemical structure design, its bioavailability in vivo can be further effectively enhanced (102) (Table 1)

L-Carnitine is produced in the liver and kidneys from the amino acids lysine and methionine

doi: 10.1155/2012/509730

How exactly the returns team measures out the product to determine this isnt obvious, but this shouldn't pose too much of an issue for L-citrulline supplements
Clin Cancer Res (2015) 21(6):12402
