natures bounty acetyl l carnitine hcl L-Carnitine Tablets for Energy Support – Nature's Acetyl L-Carnitine 500mg
Description
The hemodialysis clearances for L-carnitine, trimethylamine and trimethylamine-N-oxide were 14.3 +/- 8.2, 14.1 +/- 10.6 and 12.4 +/- 5.4 L/h, respectively, indicating their efficient removal by dialysis

Da diese Substanz auch der Mdigkeit entgegenwirken soll, ist die Aufnahme am Abend nicht empfehlenswert
The consensus view on Niacin is that it doesnt help

J Anat 236:588611
doi:10.1002/jmd2.12383 Mikhailova TL, Sishkova E, et al

Br.J Clin Pharmacol 2007;64(3):335-345
