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Thorne Research - Theanine - 90 Capsules

Thorne Research - Theanine - 90 Capsules

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Promotes relaxation, focus, and memory.


Thorne Research L-Theanine

Supports a Healthy Stress Response

Amino Acid - 90 Capsules

Thorne Research L-Theanine supports relaxation, focus, and memory.

L-theanine is a unique amino acid present almost exclusively in the tea plant (Camellia sinensis) and used safely in Japan for decades. L-theanine has demonstrated the potential to positively modify brain waves and key neurotransmitters involved in mood, focus, and memory. Consumption of L-theanine enhances brain alpha-wave activity, a sign of relaxation. The intensity of brain alpha-wave activity increases within 30-45 minutes of L-theanine supplementation, promoting relaxation, mental focus, and acuity.

Amino Acid from Tea for Enhanced Relaxation

  • Promotes relaxation, focus, and memory
  • Supports a healthy stress response
  • Enhances brain GABA production

This effect is most pronounced in persons subjectively feeling the highest levels of distress. A small Japanese study of university students showed 200 mg oral L-theanine led to increased brain alpha-waves and a subjective sense of relaxation. Theanine administration caused a dose-dependent relaxed, yet alert, state of mind without sedation, beginning approximately 40 minutes after oral dosing. L-theanine can enhance the production of the neurotransmitters dopamine and serotonin and appears to play a role in the formation of GABA - a neurotransmitter that acts like a "brake" during times of runaway stress. For additional stress relief, many of our customers use Formula 303. Theanine helps establish balance in the neurotransmitter system, resulting in improvements in the mental/emotional and physical disturbances resulting from being overly stressed.

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Additional Information

Additional Information


Suggested Use: Take 1 capsule one to three times daily or as recommended by a health-care practitioner.

Supplement Facts
Serving Size: 1 Capsule
Servings per Container: 90
Amount Per Serving %DV1
L-Theanine 200 mg *
*Daily Value (DV) not established.

Other Ingredients: Hypromellose (derived from cellulose) capsule, microcrystalline cellulose, leucine, silicon dioxide.

SKU Thorne-Research-SA508-8014
UPC Code 693749508014