Huperzine A is a great neuroprotector. Huperzine A is a acetycholinesterase inhibitor. But, Huperzine A also reduces oxidative stress, reduces beta-Amyloid, protects mitochondria, antagonizes NMDA receptors and thus reduces excitotoxicity, and regulates apoptosis.
This study found that Huperzine A improved memory deficits in elderly and those with Alzheimer's disease. Huperzine A is an acetylcholinisterase inhibitor, thereby increasing the neurotransmitter acetylcholine. Huperzine A has also been shown to be neuroprotective through its antagonistic action with the NMDA receptors. Huperzine A has been shown to be protective from organophosphate toxicity.