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L-Huperzine A is a natural plant alkaloid (extracted from Huperzia serrata), which quickly and potently boosts memory, learning, and concentration. Used worldwide for decades in adults and high school students. It's considered the most potent short term memory enhancer available. Potently raises Acetylcholine (main memory neurotransmitter) by inhibiting its breakdown from Acetylcholinesterase. L-Huperzine A strengthens the Brain's NMDA receptors to enhance focus, learning, and brain functioning. It also stimulates the synthesis of nerve growth factor to promotes youthful cerebral functioning.
Research
Zhongguo Yao Li Xue Bao. 1999 Jul;20(7):601-3.
Huperzine-A capsules enhance memory and learning performance in 34 pairs of matched adolescent students.
Sun QQ, Xu SS, Pan JL, Guo HM, Cao WQ. Xiaoshan Mental Hospital, Zhejiang, China.
Conclusion: The Hup capsules enhance the memory and learning performance of adolescent students.
Ann N Y Acad Sci. 1993 Sep 24;695:304-6.
Natural and synthetic Huperzine A: effect on cholinergic function in vitro and in vivo.
Hanin I, Tang XC, Kindel GL, Kozikowski AP.Department of Pharmacology and Experimental Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, Illinois 60153.
Conclusion: The results indicate a similar biological mechanism of action between the two, but that the racemic mixture of (+/-)Huperzine A has a weaker biological activity than the natural product (-)Huperzine A, presumably due to the presence in the mixture of (+)Huperzine A, which is considerably less potent than the (-)isomer.
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