Acetyl carnitine improves hyperactivity and learning deficits in KAT6A haploinsufficient mice Life Science Alliance Acetyl L Carnitine Douglas Labs Andrew Lessman Acetyl L Carnitine 400 360 Capsules HSN When nutraceuticals show benefit as antidepressant add ons, it's usually not because they're acting like drugs. Most antidepressants target neurotransmitters. Response is often limited by other factors (inflammation, nutrient status, energy metabolism