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Nexum Label L-Theanin 151x52 04.11.25 V2 (1) page-0001
Contents & nutrients
Nutritional values per daily dose* %NRV **
green tea extract 500 milligrams **
of which
L-theanine		 200 milligrams **
of which epigallocatechin gallate 30 milligrams **

* 1 capsule
** Percentage of nutrient reference values (NRV) according to Regulation (EU) No. 1169/2011.
*** No nutrient reference values (NRVs) available.
IngredientsGreen tea extract, coating agent: hydroxypropyl methylcellulose (vegetable capsule shell)

Consumption recommendations & notes

Daily intake: Take 1–2 capsules daily with sufficient liquid.
Time of intake: Can be taken at any time of day – ideal in the morning, with coffee, or in the evening. The effect usually sets in within 30–60 minutes.
For special situations: If you have any health concerns, are pregnant, or are breastfeeding, please consult your doctor beforehand. Do not combine with other green tea products.
Tip: L-theanine is a natural amino acid found in green tea – ideal for use during stressful periods at work, exam times, or as part of your daily routine. It can be flexibly incorporated into your everyday life.

Storage: Keep out of reach of small children. Store tightly closed in a cool (below 22 degrees), dry place away from light. Please follow the instructions on the packaging.
Info: Please note that the colors of the physical products may differ from those shown in the images. This does not affect the contents or active ingredients.
Note: Dietary supplements are not a substitute for a balanced and varied healthy diet. Do not exceed the recommended daily intake.

For larger quantities, please contact us at the following email address to discuss the terms and conditions: service@viktilabs.en or simply via our +Viktilabs contact form to contact.

Effects & Studies

We rely on high-quality ingredients for our dietary supplements. However, due to legal restrictions, we are unable to provide detailed information on the effects of individual ingredients. Our focus is therefore on providing high-quality products based on sound scientific findings.

For further information and to learn more about the scientific findings behind these statements, we have compiled a list of relevant studies for you:

The effects of consuming the green tea amino acid L-theanine on the ability to cope with stress and anxiety: a systematic review

Effects of L-theanine on cognitive function in middle-aged and older adults: a randomized, placebo-controlled trial

Effects of L-theanine administration on stress-related symptoms and cognitive function in healthy adults: a randomized controlled trial

A double-blind, placebo-controlled study investigating the effects of caffeine and L-theanine—both individually and in combination—on cerebral blood flow, cognition, and mood

Laboratory analyses & certifications

At Viktilabs We place great importance on the safety and quality of our products. To ensure this, our dietary supplements undergo regular testing in specialized laboratories. We focus in particular on the purity of the ingredients and compliance with the highest quality standards.

- Regular analysesOur products are tested in independent laboratories to ensure that they are free of contaminants and of the highest purity.
- HACCP-certified warehouseOur products are stored and processed under strict food safety standards to ensure their quality and safety.
- Transparency: We publish the results of these analyses directly alongside the product images in our online shop so that you can see the quality of our products at any time.
- organic certificationMany of our products are also certified organic, guaranteeing you even higher quality and sustainability.

Your health is our top priority, and we want you to feel safe and well informed with every purchase.

Neu

L-Theanine 200 mg: From high-quality green tea extract

€19,90
€519,58 /kg
Tax included. Shipping calculated at checkout
30-day return policy
Climate-friendly shipping
Lab-tested and developed in Germany
Good to know
L-theanine is a natural amino acid that has traditionally been valued for its mental relaxation properties and is ideal for combining with everyday life.

High dosage with 200 mg L-theanine: Naturally sourced from green tea leaves

Pesticide-free and decaffeinatedThanks to controlled premium raw materials

Without chemical solventsResidue-free extraction using water

Versatile: With coffee or as part of your evening routine

Without synthetic additives: Laboratory tested and manufactured in Germany

quantity:1 glass
● In stock: delivered to you in 2-3 days
● Currently out of stock - replenishment is on its way

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30-day return policy
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Who is this product suitable for?

For anyone who wants to incorporate L-theanine from high-quality green tea extract into their daily routine—whether for mental stress, as a supplement to coffee, or as part of their evening routine.

Book a personal product consultation
Contents & nutrients
Nutritional values per daily dose* %NRV **
green tea extract 500 milligrams **
of which
L-theanine		 200 milligrams **
of which epigallocatechin gallate 30 milligrams **

* 1 capsule
** Percentage of nutrient reference values (NRV) according to Regulation (EU) No. 1169/2011.
*** No nutrient reference values (NRVs) available.
IngredientsGreen tea extract, coating agent: hydroxypropyl methylcellulose (vegetable capsule shell)

Consumption recommendations & notes

Daily intake: Take 1–2 capsules daily with sufficient liquid.
Time of intake: Can be taken at any time of day – ideal in the morning, with coffee, or in the evening. The effect usually sets in within 30–60 minutes.
For special situations: If you have any health concerns, are pregnant, or are breastfeeding, please consult your doctor beforehand. Do not combine with other green tea products.
Tip: L-theanine is a natural amino acid found in green tea – ideal for use during stressful periods at work, exam times, or as part of your daily routine. It can be flexibly incorporated into your everyday life.

Storage: Keep out of reach of small children. Store tightly closed in a cool (below 22 degrees), dry place away from light. Please follow the instructions on the packaging.
Info: Please note that the colors of the physical products may differ from those shown in the images. This does not affect the contents or active ingredients.
Note: Dietary supplements are not a substitute for a balanced and varied healthy diet. Do not exceed the recommended daily intake.

For larger quantities, please contact us at the following email address to discuss the terms and conditions: service@viktilabs.en or simply via our +Viktilabs contact form to contact.

Effects & Studies

We rely on high-quality ingredients for our dietary supplements. However, due to legal restrictions, we are unable to provide detailed information on the effects of individual ingredients. Our focus is therefore on providing high-quality products based on sound scientific findings.

For further information and to learn more about the scientific findings behind these statements, we have compiled a list of relevant studies for you:

The effects of consuming the green tea amino acid L-theanine on the ability to cope with stress and anxiety: a systematic review

Effects of L-theanine on cognitive function in middle-aged and older adults: a randomized, placebo-controlled trial

Effects of L-theanine administration on stress-related symptoms and cognitive function in healthy adults: a randomized controlled trial

A double-blind, placebo-controlled study investigating the effects of caffeine and L-theanine—both individually and in combination—on cerebral blood flow, cognition, and mood

Laboratory analyses & certifications

At Viktilabs We place great importance on the safety and quality of our products. To ensure this, our dietary supplements undergo regular testing in specialized laboratories. We focus in particular on the purity of the ingredients and compliance with the highest quality standards.

- Regular analysesOur products are tested in independent laboratories to ensure that they are free of contaminants and of the highest purity.
- HACCP-certified warehouseOur products are stored and processed under strict food safety standards to ensure their quality and safety.
- Transparency: We publish the results of these analyses directly alongside the product images in our online shop so that you can see the quality of our products at any time.
- organic certificationMany of our products are also certified organic, guaranteeing you even higher quality and sustainability.

Your health is our top priority, and we want you to feel safe and well informed with every purchase.

Intake
  • Daily dose: 1-2 capsules daily with sufficient liquid
  • Optimal intake: Flexible in everyday life – possible at any time of day
  • Onset of effect: Usually within 30–60 minutes after ingestion
Dosage
  • 1 capsule: Equivalent to 200 mg L-theanine
  • 60 capsules: Enough for 1-2 months
Intolerances
  • Good compatibility: Free from allergens
  • In case of intolerance: Easy to use
  • In case of uncertainty: Always consult a doctor.
  • Pregnant and breastfeeding women: Consultation with a physician is recommended
Recommendations
  • Suitable with coffee: Traditionally used in Japanese tea culture
  • Regular use: Daily for long-term integration into everyday life
  • Easy to combine: Can be used without any problems with other dietary supplements

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Our mission: Rethinking health

Leon Benedens, Paul Seelhorst, and Christian Goldau founded Viktilabs in 2020 after experiencing negative experiences with chronic diseases and health conditions. Paul Seelhorst, in particular, knows his own ordeal firsthand: After years of suffering from autoimmune symptoms, allergies, and mental health issues, he regained his health through targeted dietary and lifestyle changes. These personal experiences motivated the founders to take their health into their own hands and create a brand that stands for purity, efficacy, and transparency.

Viktilabs was born out of a personal desire to specifically close supply gaps and meet the increased demand for vitamins and vital substances with natural, laboratory-tested products. The founders focus on uncompromising quality, sustainability, and a close-knit community.

To date, Viktilabs has remained completely self-financed and independent of external investors.

Their mission: to help people find their individual balance of vitality and well-being – with nutritional supplements they can truly trust.

Only the best for you

satisfaction

Vegan

quality promise

Developed in Germany

Your health. Your choice.

We know how difficult it can be to navigate through the jungle of different brands. We want to make it easy for you.

+viktilabs

  • Developed in Germany & EU
  • Contains only declared ingredients
  • Manufactured without genetic engineering
  • Free from lactose & gluten
  • Free from toxic residues
  • Without release agents such as silicon dioxide
  • Without colorants such as titanium oxide
  • Without sweeteners such as aspartame
  • Without gelling agents such as carrageenan
  • Without binding agents such as PEG
  • Without artificial preservatives
  • Free from nanoparticles
  • Free from allergens
  • Laboratory tested for heavy metals & PAHs
  • Manufactured and filled in the EU
  • Certified HACCP, GMP, ISO 9001 & IFS 7
  • Light-protected glass packaging
  • Free from BPA & other plasticizers

Other

  • Made in China or similar
  • Contains hidden additives
  • Genetically modified
  • Traces of lactose & gluten
  • Toxic extraction residues
  • Releasing agents such as magnesium stearate
  • Colorants such as titanium oxide
  • Sweeteners such as aspartame/dextrose
  • Gelling agents such as carrageenan
  • Binders such as PEG
  • Artificial preservatives
  • Contains nanoparticles
  • Contains allergens
  • Not laboratory tested
  • Uncontrolled production & bottling
  • Missing certifications
  • Unprotected packaging
  • Contains BPA or other plasticizers

FAQ

Frequently asked questions about " L-Theanine 200 mg: From high-quality green tea extract "

For all adults over the age of 18 who want to incorporate a natural amino acid from high-quality green tea extract into their daily routine. Pregnant women, breastfeeding mothers, and people taking medication should consult their doctor before taking this product. This product is not suitable for children and adolescents under the age of 18.

Take 1–2 capsules daily with sufficient liquid. The capsules can be taken independently of meals and flexibly throughout the day—in the morning, with coffee, or in the evening. Follow the specific instructions on the packaging.

L-theanine is a natural amino acid that occurs almost exclusively in the green tea plant (Camellia sinensis). Our L-theanine is extracted from pesticide-free, decaffeinated green tea leaves using a gentle water extraction process without chemical solvents. It is not synthetically produced and contains 200 mg of L-theanine per capsule. If you experience any adverse reactions or discomfort while taking this supplement, stop taking it immediately and consult a doctor.

If you are taking medication or have a pre-existing medical condition, we recommend that you consult your doctor or a trusted alternative practitioner before taking this dietary supplement. As the manufacturer, we are not permitted to give medical advice, as individual health conditions must be carefully considered.

Our product is vegan and does not contain any known allergens. Check the ingredient list on the packaging for detailed information to ensure that it is suitable for you.

Each jar contains 60 capsules. This amount is sufficient for 30 to 60 days, based on the recommended daily dose.

To maintain the quality of the product, store it in a cool, dry place out of the reach of children. Avoid direct sunlight and high temperatures (below 22 degrees). The expiration date is shown on the label of your product. This date applies to an unopened product. Once opened, the product should be used within 6 months.

No, our L-theanine from green tea extract is completely decaffeinated and contains no caffeine. You can therefore take it at any time of day without hesitation—even in the evening.

Yes, the L-theanine from green tea extract is regularly tested for heavy metals. You can find the test certificate on the product page for L-theanine capsules.

Yes, L-theanine from green tea extract can be combined well with coffee. This combination is traditionally known from Japanese tea culture, where green tea contains both L-theanine and caffeine. You can take 1 capsule about 30 minutes before or during your coffee.

Our L-theanine comes exclusively from natural green tea extract (Camellia sinensis) and is not synthetically produced. It is obtained through gentle water extraction from pesticide-free green tea leaves.

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