l carnitine chemical formula L-Carnitine Carnitine - Wikipedia
Description
[1] A significant increase in resting levels of blood nitrate/nitrite was noted for subjects receiving GPLC compared to placebo (in a double blind design)
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DBPC, double-blind placebo-controlled trial

May boost energy levels

Amount Per Serving % Daily Value L-Carnitine (from BIOSINT L-Carnitine Fumarate) 500 mg
Not only that, carnitine can balance glucose levels, and shift energy metabolism