* Percent Daily Values are based on a 2000 kcal or 8400 kJ diet. Your Daily Values may be higher or lower depending on your calorie needs.
** Daily Value not established.

60 Capsule(s)
Serving Size 1 Capsule(s)
Servings Per Container 60
Daily Quantity%DV(*)
L-Theanine, Glazing agent (Gelatin), Thickener (Microcrystalline Cellulose), Bulking Agent(s) (Maltodextrin), Anti-caking Agent (Magnesium Stearate, Silicon Dioxide).
Do not exceed the recommended daily dosage. This product should not replace a varied and balanced diet and a healthy lifestyle. Keep out of reach of children. Keep tightly sealed in the original packaging in a cool, dry place and away from direct sunlight.



The calming and antioxidant green tea extract to boost your brain function and improve your rest.


When it comes to promoting physical relaxation and mental clearness and focus, no other herbal extract has shown clinically proven results that are as convincing and significant as Theanine.
Theanine is an amino acid that is extracted from a particular type of tea leaves that are found in eastern Asia. The species is a member of the Theaceae family, and it’s been known to produce a naturally calming and effect in the brain, improving relaxation, but also mental acuity and focus.

The tea containing Theanine has been consumed in many Asian countries for decades, with noticeable effects on relieving stress. However, Theanine was only discovered as a constituent of this type of tea in 1949. Almost 15 years later, after having thoroughly studied its composition and effects, the Japanese authorities approved it for use in all kinds of foods, like sweets, soft drinks, and herb teas.

L-Theanine, which is the bioavailable form of Theanine, can increase the production of neurotransmitters that are responsible for our mood and our mental performance. These neurotransmitters are chemicals, such as dopamine and serotonin, and the production of these chemicals is directly proportional to the way we feel. Being in a good or bad mood, feeling relaxed or stressed, calm or anxious, it all comes down to the level of neurotransmitters available to the brain.

Studies have shown that consuming the right amount of L-Theanine triggers the production of neurotransmitters, which effectively alter the way we feel and act. L-Theanine creates the chemical environment to induce relaxation without drowsiness, to enhance mental functions like our thought process and memory, and to improve our rest.

Because it contains a powerful antioxidant called epigallocatechin gallate (EGCG), L-Theanine can also produce a significantly positive effect on the cardiovascular system, improving our cardiac health. Furthermore, by fighting the oxidative damage caused by free radicals, L-Theanine can help prevent several types of cancer.

Okygen now introduces L-Theanine 200, a pure L-Theanine formula with the exact daily dose to fight feelings of anxiety and stress, promote relaxation and brain functions, and benefit rest.
Improve the way you feel and think with a natural amino acid that has proven its worth throughout decades.


Okygen L-Theanine 200 highlights:
• Helps you feel relaxed
• Improves your rest and your sleep
• Reduces feelings of anxiety and stress
• Promotes the production of neurotransmitters
• Enhances mental focus and memory
• Natural amino acid extracted from Asian tea