acetyl l carnitine cause anxiety Effect of monosodium glutamate-induced obesity on anxiety-like behavior and the possible protective role of L-carnitine Frontiers | L-Carnitine and Acetyl-L-Carnitine:

Furthermore, it can be seen that the OCR elevation induced by 10 M colistin was significantly reduced by the presence of L-carnitine

The active component in milk thistle seeds, silymarin, has been shown in some studies to increase glutathione levels naturally up to 35% to 50% by protecting liver cells and supporting their function

Preclinical studies suggest that ALCAR may increase neuroplasticity (the ability of neurons to create new connections) and neurogenesis (the growth of new brain cells) in the hippocampus (where emotional memories are stored) and prefrontal cortex (higher level thinking and modulation of emotional reactions) (Wang and Pae 2017)

Since doctors think they need to keep levels within that range, they wont inject too often