L-theanine is a unique amino acid that is found almost exclusively in the tea plant (Camellia sinensis) and which has been used safely in Japan for decades. L-theanine has been shown to positively modify brain waves and the key neurotransmitters involved in mood, focus, and memory. L-theanine enhances the production of the neurotransmitters dopamine and serotonin, and also appears to play a role in the formation of GABA – a neurotransmitter that acts like a "brake" during times of runaway stress. L-theanine also enhances brain alpha-wave activity, a marker of relaxation. This effect has been observed to be most pronounced in individuals subjectively feeling the highest levels of stress.
A Japanese study of university students found that 200 mg of L-theanine led to increased brain alpha-waves and a subjective sense of relaxation. In the same study, L-theanine administration also caused a dose-dependent relaxed, yet alert, state of mind without sedation, beginning approximately 40 minutes after ingestion.
L-theanine can enhance the production of the neurotransmitters dopamine and serotonin, and it appears to play a role in the formation of GABA – a neurotransmitter that acts like a "brake" during times of runaway stress. L-theanine helps establish balance in the neurotransmitter system, resulting in improvements in the mental/emotional and physical disturbances resulting from being overly stressed.
Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Hypromellose (derived from cellulose) capsule, microcrystalline cellulose, leucine, silicon dioxide.
Tamper Evident: Use only if bottle is sealed. Store tightly sealed in a cool, dry place.
If pregnant, consult your health-care practitioner before using this product.
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Serving Size: One Capsule
One Capsule Contains: %Daily Value
L-Theanine† 200 mg *
*Daily Value (DV) not established.
†This product uses Taiyo International's Suntheanine (L-Theanine).