L-Theanine (Green Tea Extract) For Anxiety Relief

Benefits of L-Theanine In Green Tea Extract For Anxiety and Stress

You may find natural anxiety relief by drinking a cup of green tea containing L-Theanine. L-Theanine (gamma-ethylamino-L-glutamic acid) is the predominant amino acid in green tea leaves.

Green Tea Is A Rich Source of L-Theanine

Green Tea

Many people do find anxiety relief by drinking different herbal teas, but how does green tea and its L-theanine content help you with your battle against stress and anxiety?

L-theanine is an amino acid extracted from the leaves of the tea plant (Camellia sp.)

Although black tea also contains L-theanine, green tea is known to contain the most abundant levels of L-theanine making it one of the most widely consumed beverages all over the world.

For many centuries, green tea has been used as a natural remedy for treating a wide variety of health problems, including reducing stress and anxiety.

How L-Theanine Affects You

A study that was spearheaded by Dr. Hihehiko Yokogoshi in Shizuoka, Japan revealed that L-theanine can significantly increase dopamine levels.

  • Dopamine is a neurotransmitter that affects our emotions and moods.

Moreover, it also showed that the levels of GABA (Gamma Aminobutyric Acid) which is responsible for feelings of well-being were increased after L-theanine administration.

L-Theanine For Anxiety

How L-Theanine Works

The fat solubility of L-Theanine enables it to be incorporated easily into our brain through one of its transport systems so it can cross the blood-brain barrier. Once these L-theanine compounds are being absorbed by the brain, our body starts to manifest several positive physiological effects.

  • Deeply Relaxed – Studies have also demonstrated the ability of L-theanine to promote the generation of alpha waves in the brain. When these alpha waves are activated we experience a state of deep relaxation both mentally and physically while being awake and completely alert at the same time.
  • Non-Drowsy – These manifestations in brain activity are being likened to a person doing meditation. This goes to say that L-Theanine can make us feel relaxed without that feeling of drowsiness, contrary to taking Valerian, Kava Kava or St. John’s Wort.
  • Focused – L-Theanine can also help you to become more focused on a certain task while staving off any symptoms of stress and anxiety. These benefits of L-theanine can be experienced 30 minutes after administration.

Other L-Theanine Benefits

In Japan L-Theanine and green tea extract has been widely used in numerous foods and beverages. In the United States the FDA considers L-Theanine to be a very safe component of green tea as it was proven in several toxicology studies. The FDA has included L-Theanine in the GRAS (Generally Recognized As Safe) list.

  • It is also deemed effective in boosting your immune system, promoting concentration, enhancing learning skills, and in lowering blood pressure levels.
  • L-theanine has a significant effect on the release or reduction of neurotransmitters like dopamine and serotonin, resulting in improved memory and learning ability.

Provanax Ingredient L-TheanineSo the next time your stress and anxiety levels are at an all time high, why not pour yourself a cup of green tea and experience its relaxing effects.


L-Theanine is also an ingredient in a clinically proven natural supplement such as ProVanax.

ProVanax uses pure, decaffeinated Green Tea Extract and the L-Theanine is better absorbed by the body because it comes in its natural form. It is not processed and is 100% organic.

To read more about this natural anxiety supplement and its ingredients, you can read my ProVanax review.

Affiliate Disclosure

My website contains affiliate links, which means if you purchase any products mentioned in my articles, I may receive a commission. If you do, thank you!

About Jennifer Johnson

I suffered with social anxiety and stress for years. I discovered what my triggers were and learned to control them. Hopefully some of the natural anxiety relief techniques I have tried, will also be your solution.


  1. I have been taking prescription anxiety medication for 3-4 yrs. How will this supplement affect my meds?

  2. Jennifer Johnson says

    Hi Vickie,

    To protect everyone legally, (as no-one is allowed to give advice online or suggest outcomes) you would have to ask your doctor if organic, natural supplements are alright to take with your medications.

    However, Dr Sam Robbins has answered many similar questions on my review page here:


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