what does the l mean in l-carnitine Is L-Carnitine? How It Work? Liquid L-Carnitine
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Taken together, the evidence supports using racemic ALA which is why it forms the basis of our top recommendation

Ziegler, D., Hanefeld, M., Ruhnau, K

Role of mitochondrial dysfunction in neurotoxicity of MPP+: Partial protection of PC12 cells by acetyl-L-carnitine

Some studies have used doses as high as 4,500 mg per day without serious adverse effects

[23] PRETE, V., ABATE, A.C., DI PIETRO, P., DE LUCIA, M., VECCHIONE, C., CARRIZZO, A
