One of six named ingredients in Marycept. Here's the specific role Huperzine-A plays in the formula.
Huperzine-A is a compound that supports acetylcholine levels, a neurotransmitter linked to memory and focus. It's a cholinesterase inhibitor, which means it should not be combined with Alzheimer's medications, and some sources recommend cycling its use rather than taking it continuously. As with St. John's Wort, this is a reason to check with a doctor before starting Marycept if you take any prescription medication.
Huperzine-A was selected specifically for its role in acetylcholine support, working alongside the other five named ingredients rather than hidden in an unnamed blend. See the full list on the Marycept ingredients page.