Contains 100mg L-Theanine, 50mg Caffeine and 50mch Huperzine A per capsule.
About the Ingredients:

L-Theanine is an amino acid found almost exclusively in tea. It is known to promote relaxation, improved memory, a calm mind and a reduction in stress.

Caffeine is (as we all know) a bitter substance found in coffee, tea and soft drinks. It has many positive effects on the body's metabolism, including stimulating the central nervous system. This is why you find yourself feeling more alert and energetic after a cup of coffee.
 
Huperzine A is a natural compound extracted from the Chinese club moss Huperzia serrata. Worldwide studies have shown that Huperzine A supports learning and memory by protecting acetylcholine, a neurotransmitter that acts as a messenger molecule in the brain. Huperzine A may be used for both short-term "brain boost" needs, such as preparing for a test, as well as more long-term needs, such as reducing the mild memory loss associated with normal aging.