l carnitine inj L-Carnitine Injection 100ml Injectable L-Carnitine - How It
Description
Freo et al., 2009

doi: 10.1093/cercor/bhx005

Acetyl-L-Carnitine (ALCAR): Includes an acetyl group, allowing it to cross the blood-brain barrier

Toxicity of intravenous anaesthetics

It's very powerful but I would not recommend this for complete beginners as it's too strong for a beginner