Huperzine A is a naturally occurring compound extracted from the Huperzia Serrata moss. Huperzine A acts as an Acetylcholinesterase Inhibitor, allowing an increase of the neurotransmitter Acetycholine, with a beneficial effect on memory, attention and neuronal plasticity.
In recent years there has been a development of synthetic Huperzine A. However, unlike natural Huperzine-A whichs consists purely of the (-) isomer, the synthetic form has a racemic mixture of both (+) and (-). This synthetic (+/-) version is three times less potent then the natural extract1.