L-Theanin 250mg (90 capsules)

  • For dietary treatment of chronic states of exhaustion
  • Combats stress
  • For sleep disorders
  • Improves concentration
  • Rich in natural L-Theanine and polyphenols
  • At least 30% polyphenols that protect the organism from oxidative stress
  • Caffeine content reduced to a minimum
  • Suitable for vegans and vegetarians
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  • Gluten Free

    Gluten Free

  • Lactose Free

  • Vegan

  • Without Preservatives

  • GMO Free

  • Soya Free

  • Without Artificial Flavors



L-Theanain is an amino acid from green tea, which has anti-anyolytic and relaxing properties.

It contributes to the improvement of memory, concentration and learning capacity, without causing fatigue.

Compensates for the effects of caffeine or synergistic products by lowering blood pressure.

It operates after 30-45 minutes and continues for 6 hours, doesn’t cause dependence and is currently the highest dosage on the market.

Suitable for vegans and vegetarians.

Product information

Product information

Art-No. 20334
PZN: 13251465
EAN 4260085383818
Quantity: 90 capsules
Capsule shell type: Vegetarian

Contents per dose (1 capsule)

Contents per dose (1 capsule)

Ingredients: 250mg of green tea extract (of which contains 100mg (40%) of L-Theanine and 75mg (30%) of polyphenols).

Other Ingredients: Hydroxypropyl Methylcellulose (HPMC).

Does not contain: Gluten, lactose, artificial flavors, soy, artificial coloring and preservatives.

Recommended dose



Dietary supplements should not be used as substitutes for a varied and healthy diet. Keep out of reach of children. Do not exceed the recommended dosages. Keep in a cool, dry place away from light, heat and moisture. In case of pregnancy or breastfeeding the dose should be done under medical indication. Do not use in case of hypersensitivity, allergy and when interactions of another product with any of the constituents of the formulation are described. Preferably consume before the end of: see at the bottom of the package (validity).

Additional product information

Test Report

Look here for current customer information and test report for all our products from an independent German laboratory and convince yourself of your safety. All ZeinPharma products are regularly tested by independent laboratories looking for microorganisms to ensure a complete and safe product.

20334 LMIV_L-Theanin_Natural_250mg_ENG

L-Theanine 250 mg

•    For the dietary treatment of chronic states of fatigue and stress-related diseases

•    Relaxation without inducing fatigue

•    Rich in natural L-theanine and polyphenols

•    Green tea extract from controlled cultivation

•    Suitable for vegetarians and vegans

L-Theanine promotes relaxation

Insomnia and chronic fatigue are serious conditions that can lead to physical and mental illnesses. The causes are various. Especially the working people are exposed to constant stress situations, suffer from lack of exercise due to their sedentary work and they have no time to keep a balanced diet. Moreover, mental stress such as family problems, illnesses or obesity can also lead them to constant fatigue.

According to recent studies, the amino acid L-theanine inhibits the glutamate receptors in the brain. In this way, the active ingredient promotes mental and physical relaxation and thus reduces your stress, without making you sleepy!

With ZeinPharma® L-Theanine Natural, you get a tea leaf extract from the province of Sichuan, which is rich in natural L-theanine and contributes to the dietary treatment of chronic states of fatigue and stress-related diseases.

Quickly available in the cases of stress

and fatigue

L-Theanine is structurally related to the body’s own amino acid L-glutamic acid, which plays an important role in the transmission of nerve impulses in the brain.

A recent study indicates that L-theanine is already absorbed into the small intestine within 10 to 24 minutes, it gets into the bloodstream and is directed to the brain. There it passes the blood-brain barrier into the nerve cells and can rapidly develop its positive effects in the brain.

In addition, with our L-Theanin Natural capsules, we offer you a preparation which is well-tolerated by gastric acid, which easily reaches the small intestine without loosing its active ingredient. If you prefer a higher dosage, take a look at our L-Theanin Natural Forte!

5 Reasons for taking L-Theanine


For the dietary treatment of chronic states of fatigue and stress-related diseasesContains more than 40 % natural L-theanineRapid bioavailabilityAdditional polyphenol content of at least 30 %Suitable for vegetarians and vegans