l carnitine liquid fat burner L-Carnitine, Malibu Beach, 12 fl oz (360 ml) GAT Liquid L-Carnitine - Boost
Description
(standard deviation)

However, L-Carnitine is considered safe when taken in doses of 13 grams per day
For anyone tempted by the it's research, not medicine framing: the MHRA's own guidance is unambiguous

Bioavailable and benefits continue after one stops taking it Acetyl-L-carnitine can cross the BBB and neural cell membranes more readily than conventional L-carnitine, making it more bioavailable
