Green Tea Extract Capsules contain a concentrated form of carefully selected green tea leaves, processed into a convenient supplement. The extract is based on a traditional ingredient and is easy to incorporate into your daily routine.
Green Tea Extract Capsules 500mg (L-Theanine)
- 🌿 Naturally obtained from green tea leaves.
- 💊 Convenient capsules – easy to take and gentle on the stomach.
- 🌱 Suitable for vegetarians and vegans.
- 🔬 Tested for quality and purity by an independent lab.
Cupplement is now GOYU. Same quality, new name.
Choose quantity:

The Benefits of Green Tea Extract
This Green Tea (98% L-theanine) is based on extracts. Extracts contain more active ingredients, so fewer capsules are needed for similar effects compared to the raw form of the substance.
This Green Tea is a 10:1 Extract
This means that 10 parts of the original plant are needed to make one part of the extract. It is a measure of the concentration of the extract. In other words, the extract is 10 times more concentrated than the original plant. For example, if you use 10 grams of the plant, you get 1 gram of extract.
Resealable packaging
Our Green Tea extract is delivered in a sustainable resealable package.
The benefits of Green Tea (98% L-Theanine)
- Antioxidant: Protects healthy body cells against oxidative damage caused by free radicals.*
- Supports fat metabolism: Helps maintain a healthy weight.*
- Good for cholesterol levels: Contributes to maintaining normal cholesterol values.*
- For maintaining healthy blood sugar levels: Supports stable blood sugar levels.*
*Health claim is pending European approval.
Lifelong wellbeing, powered by nature
Our promises
More sustainable packaging
Our packaging contains less plastic than traditional packaging.
From Europe
All our products are made in Europe with pure ingredients of international origin.
Feel Good Guarantee
Are you not satisfied with your purchase? Then you will always get your money back within 30 days.
Next day delivery
Ordered on weekdays = delivered to your mailbox the next day. Always free shipping from €49.
Frequently Asked Questions
What are Green Tea Extract capsules?
Green tea extract is obtained from the leaves of the Camellia sinensis plant, which mainly grows in China, Japan, and India. It contains a high concentration of polyphenols and catechins, including EGCG (Epigallocatechin gallate).
What is l-Theanine?
L-theanine is a natural amino acid that occurs naturally in green tea. It is often valued in nutrition and tea cultures for its gentle, distinctive properties.
How is L-theanine extracted from green tea?
Through a special extraction process from the leaves of green tea. This concentrate often contains 98% L-theanine, as in our capsules.
Is Green Tea Extract the same as drinking green tea?
No. Green tea contains a milder amount of the natural substances. An extract is concentrated and offers a much higher dosage in one capsule.
Can I combine Green Tea Extract capsules with other supplements or medications?
Green tea extract can affect medications such as blood thinners, blood pressure medication, and certain antidepressants. Consult a doctor before combining it with medication.
Are there any side effects of Green tea extract capsules?
Possible side effects include stomach discomfort, headache, or mild nervousness, especially at high doses or if sensitive to caffeine.
Can you take Green Tea Extract if you are pregnant?
Due to the caffeine and active compounds, it is recommended to be cautious with green tea extract during pregnancy or breastfeeding. Consult a doctor before use.
Is green tea extract suitable for vegetarians and vegans?
Yes, the green tea extract capsules are 100% plant-based and suitable for vegetarians and vegans.
Does green tea extract contain caffeine?
Yes, green tea naturally contains caffeine. The exact amount depends on the extract and concentration. Always check the product label for information.
Can I take green tea extract together with coffee?
Yes, but keep in mind that both coffee and green tea naturally contain caffeine. The combination can lead to extra stimulation in sensitive individuals.
Good to combine with
Ashwagandha
Green tea extract pairs well with Ashwagandha.
- Ashwagandha helps relax body and mind.*
- It supports energy levels.*
- It helps promote readiness for sleep.*
- It is good for memory.*
- It has a beneficial effect on heart and blood vessels.*
* Health claim pending European approval.
Valerian
Valerian combined with Green tea extract is a suitable addition to a balanced lifestyle.
- Valerian helps to fall asleep*
- Valerian contributes to a natural, healthy sleep*
- Valerian supports mental balance*
- Valerian helps to better cope with stress in daily life*
* Health claim pending European approval.
Magnesium
Green tea extract pairs well with magnesium.
- Magnesium helps reduce tiredness and fatigue*
- Magnesium contributes to normal energy-yielding metabolism*
- Magnesium supports the normal functioning of the nervous system*
* Approved health claims according to Regulation (EC) No 1924/2006
Berberine
Green tea extract pairs well with berberine:
- Berberine helps maintain normal cholesterol levels*
- Berberine supports liver health*
- Berberine contributes to normal digestion*
- Berberine supports skin health*
* Health claim pending European approval.
Psyllium fibers
Green Tea Extract pairs well with psyllium fibers:
- Psyllium supports digestive function
- Psyllium helps maintain regular bowel movements
* Health claim pending European approval.
- Choosing a selection results in a full page refresh.