L-Theanine Powder

L-Theanine is a non-protein amino acid that crosses the blood-brain barrier and influences neurotransmitter activity, primarily by modulating GABA, dopamine, and serotonin levels while also promoting alpha brain wave activity associated with wakeful relaxation. It does not act as a stimulant or sedative, which distinguishes it from many other compounds used for similar purposes. Powder form allows flexible dosing and easy incorporation into beverages or stacks; it is commonly combined with caffeine, where the two are thought to complement each other. Typical serving sizes in research contexts range from 100 mg to 200 mg, and the unflavored powder suits adults who prefer to control their own dose rather than use pre-measured capsules.