Huperzine A

Huperzine A is an compound found in Huperzia serrata (Chinese club moss) or Huperzia selago (fir club moss) that increases the levels of the neurotransmitter acetylcholine.

Huperzine A is sold under the brand name Cerebra and is the primary ingredient in Parasym Plus, a dietary supplement marketed for Ehlers Danlos Syndrome, postural orthostatic tachycardia (POTS), and mast cell activation disorder.

Evidence
Huperzine A may improve memory and thinking, for example in Alzheimer's disease, but evidence is very limited.

Learn more

 * Huperzine A - WebMD