l-theanine

L-Theanine is a relaxing and nondietary amino acid found pretty much exclusively in teas from Camellia sinensis and is known to promote relaxation without sedation.

L-Theanine (Standard) is the analytical standard of L-Theanine, primarily used for research and analytical applications. L-Theanine (L-Glutamic Acid γ-ethyl amide) is a non-protein amino acid found in green tea leaves. It competitively blocks the binding of glutamate to glutamate receptors (such as NMDA, AMPA, and Kainate receptors) in the brain, exerting neuroprotective, anticancer, and antioxidant activities. L-Theanine can effectively cross the blood-brain barrier and exhibits high oral bioavailability.

L-Theanine-D5 (N-Ethyl-D5) (Standard) is a reference standard of L-Theanine-D5 (N-Ethyl-D5) intended for quantitative analysis, quality control, and related biochemical research applications.

DL-Theanine (DL-Glutamic acid γ-ethyl amide) is a natural compound known for its calming effects on the brain.

L-Cystine disodium monohydrate is the orally active extracellular form of L-Cysteine found in plant and animal proteins. It enhances the expression of the Nrf2 protein and activates the Nrf2 transcription factor. Additionally, L-Cystine disodium monohydrate decreases the production of reactive oxygen species (ROS) and safeguards cells from oxidant or Doxorubicin-induced apoptosis. When used with L-theanine, it boosts the production of antigen-specific IgG by increasing glutathione (GSH) levels and Th2-mediated responses. L-Cystine disodium monohydrate shows potential for research into cystinosis and kidney stones.