huperzine a 200mcg (third party tested) made in the usa, 120 tablets, nootropics brain supplement to promote acetylcholine, support memory and focus by double wood supplements double wood supplements huperzine a (l-huperzine a) is an acetylcholinesterase inhibitor. this means it helps promote higher levels of acetylcholine in the brain. higher levels of acetylcholine support ones ability to perform cognitive tasks such as learning new things, memorizing information, and focusing at the task at hand. huperzine a is considered to be a nootropic supplement because it supports cognitive function. it is considered a focus and memory nootropic similar to alpha gpc, bacopa, phosphatidylcholine, cdp choline, sulbutiamine, and uridine. it is also considered a brain booster as it is used for brain health and support. our product is 200 mcg huperzine a tablets. our products is made right here in the usa (new york) and is third party tested for purity.