How does it help treat depression and anxiety? Well, it preserves levels of neurotransmitter Acetylcholine in the body. A neurotransmitter, as you know, is one of those essential chemicals that our nerves use to communicate in the brain. The lack of Acetylcholine results in a few brain disorders, including depression. So if you're lacking Acetylcholine, Huperzine A can be a very helpful anti-depressant. Take a lower dosage of Huperzine A in the beginning because it is recommended to start with a lower dosage. Click the link below for more information. Here's a link to the most popular brand on Amazon.