L-Theanine - Powder natural balance for your mind and body - 23 g
L-Theanine is an amino acid naturally occurring in green tea that contributes to normal nervous system function and psychological functions. The ideal choice for anyone seeking a natural path to mental well-being.
WHY BUY
L-Theanine from L Cell is a carefully formulated dietary supplement that combines scientifically proven quality with high potency.
This amino acid, naturally found in green tea leaves, contributes to normal mental and nervous system activity, which can help to help maintain mental balance and concentration.
Unlike other relaxants, it has no sedative effects and does not interfere with natural alertness.
This supplement is especially suitable for those who want to help maintain normal levels of stress and mental tension without feeling sleepy.
Thanks to its action on the levels of neurotransmitters such as dopamine and serotonin, it can help maintain normal emotional state and cognitive function.
In addition, it contributes to normal metabolism of macronutrients, carbohydrates and fatty acids, which may be helpful for those who want to promote weight control.
Thanks to its powder form, L-Theanine is easy to dose and can be mixed into drinks or food.
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SUITABLE FOR
Notice
According to EU regulations, we have to write on our website:
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Follow the recommended daily dosage.
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The product is not suitable as a substitute for a varied diet or as a replacement for a balanced diet.
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If you are nursing (ill), pregnant or expecting to become pregnant, consult a qualified nutritionist/physician about the use of the product.
But! Each person has different needs, which means that the recommended daily dosage is not set in stone.
We, as sellers, are not qualified to advise you in any way. Always consult a naturopath, holistic physician, or otherwise educated person who practices traditional medicine (this may include a classically trained physician - with some exceptions).
L-Theanine - Powder - Main Benefits
Discover the key benefits and unique features of this supplement:
- Mental Health - can contribute to normal psychological and nervous system function.
- Weight control - can contribute to normal metabolism of carbohydrates, macronutrients and fatty acids.
- Longevity - L-Theanine is an autophagy modulator that promotes the "recycling" of damaged cellular components and acts as an antioxidant that fights free radicals.
- High quality composition - does not contain GMO, artificial colours, preservatives or allergens.
- Safety and quality control - tested for heavy metals and mycotoxins.
- Powder form for easy use - add 1 scoop of powder to drinks or food before bedtime.
- If you don't like the powder form - try it in capsules.
- L Cell is a brand of dietary supplements focused on longevity, created in collaboration with leading scientists and medical experts.
- Try this brand - which emphasizes natural ingredients.
If you are looking for a different product, check out our offer of dietary supplements!
What is L-Theanine?
L-Theanine is an amino acid naturally found in green tea leaves that is valued for its effects on mental well-being and concentration.
It is popular among those seeking a natural boost of relaxation without drowsiness.
Due to its action on neurotransmitters in the brain, L-Theanine is associated with maintaining normal mental activity, making it a valuable supplement for everyday life.
How does L-Theanine work?
L-Theanine affects the levels of key neurotransmitters such as dopamine, serotonin and GABA, thereby contributing to the normal functioning of the nervous system.
When taken regularly, it can help maintain a normal emotional state, concentration and mental balance.
Unlike other relaxants, it does not impair alertness or cause drowsiness.
Due to its effect on alpha brain waves, it can help maintain normal stress levels.
In addition, it plays a role in macronutrient metabolism, which may be beneficial for weight control.
Biohacking: science, technology and the path to a better self
Biohacking is an approach to optimizing the body and mind through science, technology and lifestyle changes. The aim is to improve performance, health and longevity through methods such as diet and sleep modification, supplementation, meditation, breathing exercises or the use of modern technology such as biomarker monitoring. Biohacking often draws on principles from nutritional science, neuroscience and epigenetics and combines them with practical tools to help people function better, feel more energetic and slow the aging process.
Roots of biohacking dates back to the 1990s, when the first experiments with personalised nutrition and health tracking technologies began to emerge. In 2005, Dave Asprey, founder of the Bulletproof Coffeewho combined nutrition, supplementation and technological innovation to improve mental and physical performance. Biohacking today is divided into several directions - from nutritional biohacking to neurohacking to hardcore biohacking, which includes implants and genetic modification. Overall, it is a conscious approach to health that uses both traditional methods and the latest scientific knowledge.
In our shop you will find other companies that have dedicated their research to this. It is, for example, a Dutch company NoordCode which specialises in functional foods and supplements for the 21st century. Their products are designed to promote a clean and wholesome diet, reduce inflammation and provide healthy and delicious options for everyday living.
Another important company is the American company Jigsaw Healthfounded in 2005 by Pat Sullivan. Specializes in the manufacture and sale of dietary supplements aimed at promoting health and vitality, including vitamins, minerals and probiotics.
Last but not least, there is Bioptimazerswho focus on optimizing health and performance through high quality nutritional supplements. Their products are designed to support various aspects of health, including digestion, sleep and cognitive function.
WHY CHOOSE L Cell
L Cell combines science, innovation and ethics to deliver quality dietary supplements focused on longevity. The range includes antioxidants, polyphenols, autophagy modulators and NAD+ boosters that support regeneration and vitality.
The products are laboratory tested and manufactured according to ISO 22000, which guarantees maximum quality and safety. Scientifically based formulations make L Cell the ideal choice for those who want to invest in health.
The brand emphasizes efficiency, sustainability and ethical production. It combines a scientific approach with respect for nature, selects quality ingredients and promotes healthy ageing. Each product is designed to suit different lifestyles and to be consistent with responsible consumption.
L Cell is backed by a team of scientists and physicians, including Professor Mindaugas Valius, an expert in cell biology, Agnė Misiūtė, a physician, and nutrition experts from UCL. Their collaboration ensures that the products reflect the latest scientific knowledge and provide reliable and innovative solutions for a long and healthy life.
Scientifically based composition
The products are developed by a team of leading scientists and physicians with a focus on longevity and cellular regeneration.
Maximum quality and safety
All supplements are laboratory tested and manufactured to strict ISO 22000 standards.
Natural composition and sustainability
The products combine a scientific approach with respect for nature, contain quality ingredients and support healthy ageing.
Innovation for health and vitality
The range includes antioxidants, polyphenols, autophagy modulators and NAD+ boosters to aid recovery and overall well-being.
Composition
Complete composition
Main components
Green tea extract (containing at least 80% L-theanine), zinc, thiamine (vitamin B1).
Nutritional components
| Nutrients and other substances | Amount per serving | |
|---|---|---|
| Green Tea Extract of which L-theanine |
250 mg 200 mg |
* * |
| Zinc | 1.5 mg | 15 % |
| Thiamine (vitamin B1) | 0.165 mg | 15 % |
* Daily Value not established
Use
- 1 scoop of powder at bedtime.
- Mix with water or other liquid and drink.
Notice
- Store in a cool, dark place out of the reach of children.
- This product is not intended to diagnose, treat or cure any disease.
- Shelf life - 24 months.
FAQ
What can be the side effects of L-Theanine?
L-Theanine is generally well tolerated, but some individuals may experience mild side effects such as indigestion or allergic reactions. It is recommended to start with a lower dose to assess individual tolerance.
What to choose - powder or capsules?
Benefits of powder:
- The powder allows for precise dosing.
- The powder is generally more cost effective than capsules and can be mixed with a variety of liquids.
Benefits of capsules:
- Capsules are convenient because they are easy to take and require no preparation.
- The capsules have a more acceptable taste, which may be advantageous for those who are sensitive to different tastes.
- Capsules ensure consistent dosing with pre-measured doses.
Can I take the supplement if I am taking any medications?
If you are taking any medications, it is advisable to consult a physician before taking L-Theanine. L-Theanine can affect the way the body processes certain medications, which could impact their effectiveness.
How to store the product correctly?
Store the product in a cool, dark and dry place, out of direct sunlight. If you live in an extremely warm environment, we recommend storing the product in the refrigerator, otherwise it is not necessary.
When does the maximum effect occur?
The effect of Effect Peak reaches its maximum within 1-2 hours from the start of use. The body needs time to fully absorb and use the active ingredients. Regular use and adherence to the recommended dosage is important for optimal results.
Be patient - the real benefits come with time!
Can I add the powder to coffee or tea?
No, dietary supplements should not be added to hot drinks as this can reduce their effectiveness. However, you can add them to lukewarm/cold drinks or food as directed.
Additional parameters
| Category: | Dietary supplements |
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| EAN: | 4779060270390 |
| Producer: | Roermondseweg 28, 6081 NV Haelen, the Netherlands |
| Country of origin: | EU |
| Suitable for: | Vegetarian-Vegan-Gluten free-Soy free-Nut free-Sugar free-Lactose free-GMO free-Low carb-Paleo-Keto |
| Content: | 42g |
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Certifikát GMP (663.1 kB)
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ISO certifikát (718.2 kB)
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L-Theanine Coa těžké kovy (730.3 kB)
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L-Theanine Coa mykotoxiny (1.4 MB)
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L Cell is a science-led supplement brand focused on longevity, cellular regeneration and the biological processes that influence long-term health. Its portfolio includes antioxidants, polyphenols, autophagy modulators, NAD+ precursors and other compounds commonly used within the fields of longevity and biohacking.
L Cell products are not designed as universal, one-size-fits-all solutions. Instead, they are carefully developed formulations grounded in current scientific understanding. Emphasis is placed on meaningful dosing, intelligent combinations of ingredients and long-term usability within a structured supplementation routine — rather than short-lived trends or quick-fix promises.
Recognised products thanks to:
- Laboratory testing: Each batch is verified by an independent third party, with a focus on purity and consistency.
- Strict manufacturing standards: Production complies with ISO 22000 and recognised good manufacturing practices.
- Thoughtful formulations: Development is informed by cellular metabolism, regeneration and the interactions between individual compounds.
- An ethical approach: A long-term commitment to sustainability, responsible production and genuine value for users.
Food supplements
Antioxidants
Polyphenols
NAD+ boosters
Who is behind L Cell
L Cell is a supplement brand that develops its own formulations in collaboration with academic experts. Its work centres on longevity, cellular health and the biological mechanisms that support long-term physical resilience.
Formulation development involves specialists in cellular biology, nutrition and molecular medicine, including researchers from the Life Sciences Centre at Vilnius University and experts collaborating with University College London (UCL). Development focuses on understanding mechanisms of action, appropriate dosing and practical long-term application.
This academic foundation clearly distinguishes L Cell from standard private-label supplement brands. L Cell does not rely on ready-made formulas or follow trends indiscriminately; only ingredients and combinations with clear relevance to efficacy, safety and long-term use are included. The brand is intended for those who want to understand what they supplement — and why.
L Cell: science, ethics and responsibility
The L Cell brand is developed by the same team behind H Drop.
Alongside scientific rigour and quality, the team places strong emphasis on social responsibility and inclusion.
L Cell actively supports diverse communities and creates an inclusive working environment for people with hearing impairments, individuals on the autism spectrum and members of vulnerable groups, including seniors. Ethical considerations are viewed as a natural part of long-term, sustainable business practice.
Ethics, respect and long-term sustainability are not marketing slogans, but principles reflected in how the brand develops, manufactures and operates.
Highest standards of quality and safety
All L Cell products are manufactured in accordance with strict quality and safety standards. Production processes comply with ISO 22000, which governs food and supplement safety.
Every product undergoes quality control and laboratory testing to ensure formulation consistency, ingredient purity and user safety.
The core idea behind L Cell is to create supplements that support longevity and cellular health.
"Have you ever considered what healthy ageing could truly look like?"
Who L Cell products are for
Those interested in biohacking and longevity
Customers with high expectations of quality and transparency
Active individuals and athletes
People who want to understand their supplementation
L Cell commitments
Quality and transparency
Sustainability
Science-led development
Community support
A long-term approach to health
| Manufacturing company : | L Cell Ltd. |
|---|---|
| Address : | Mokslininkų g. 2 Vilnius LT-08412 Lithuania |
| E-mail : | info@lcell.co.uk |
