L-Theanine is an amino acid that is not common in the diet (not one of the essential amino acids or even one of the common nonessential amino acids), and is deemed a nondietary amino acid similar to L-Ornithine or L-Citrulline. L-Theanine has structural similarity to glutamine and both neurotransmitters that are produced from it (GABA and glutamate) and is known to reach the brain and act in the brain following oral ingestion.
The properties of L-theanine can be summed up as being a relaxing agent without sedation (relative to something like lemon balm which relaxes but may also sedate), and is also implicated in reducing the perception of stress and slightly improving attention. While L-theanine does not appear to induce sleep, it may (quite weakly) help with sleep although its potency suggests it may not be a good first line treatment for this.
Interestingly, the relaxing and attention promoting properties of L-theanine coupled with the lack of sedation may L-Theanine have its most significant supplemental role in attenuating the ‘edge’ of many stimulants. A combination of L-Theanine with caffeine (200mg each) is noted to be synergistic in promoting cognition and attention.
Additional Info: For optimal storage conditions, store in a cool, dry place. Tamper resistant package; do not use if outer seal is missing.
Packaging: White Plastic
Other Ingredients: Cellulose and Vegetable Stearate.
Does Not Contain: Yeast, Wheat, Gluten, Soy Protein, Milk/Dairy, Corn, Sodium, Sugar, Starch, Artificial Coloring, Preservatives or Flavoring.
Suggested Use: As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.
Warnings: Keep out of reach of children. If you are pregnant or breastfeeding, or if you are taking any prescription medications, consult a physician prior to use. Excessive consumption may impair ability to drive or operate heavy machinery. Not recommended for consumption with alcoholic beverages.