L-Huperzine A is a naturally occurring plant alkaloid which may be found in the Huperzia serrata extract. It has been used in China for many centuries for its medicinal properties. It is used for treating fever. It also has anti-inflammatory property that can help reduce the swelling. It is also a potent supplement for boosting the memory, learning, focus and concentration. It works by inhibiting the chemical acetylcholinesterase from breaking down acetylcholine which plays an important role in the transferring and storing information throughout the brain. L-Huperzine also helps in the treatment of the disease myasthenia gravis (MG), an autoimmune disease. It also helps prevent dementia and Alzheimer’s disease.