Product name: Huperzia Serrata extract & Huperzine A Original Plant: Whole herb of Huperzia Serrata(Thumb.) Trev. Specification ... in chloroform,methanol,ethanol,and slightly in water. Description:Huperzine A may have cognition-enhancing activity, can maintains acetylcholine levels ... with double plastic-bags inside. Storage Condition: Sealed, kept in a shady & dry place. Shelf Life:24 months under the ...