Question about item
The amino acid from green tea — pure, in a capsule
L-theanine is an amino acid that occurs naturally in the leaves of the tea plant Camellia sinensis. Here it arrives as pure powder inside a plant-based capsule — one capsule a day, and that's the routine.
Anyone who drinks green tea regularly knows it as a drink with its own character — distinct from black tea or coffee. That distinctive nature isn't down to caffeine and catechins alone. It also reflects a small amino acid found almost exclusively in the leaves of the tea plant: L-theanine.
A cup of green tea provides only a small fraction of what one capsule contains, depending on variety and steeping time. Here, L-theanine arrives as a clean amino-acid powder packed into a plant-fibre hard capsule. One capsule daily, swallowed with a glass of water — no bitterness, no brewing, no steeping. The shell is hydroxypropylmethylcellulose; nothing from animal sources, no declarable allergens under Annex II of the EU Food Information Regulation, nothing more than what's needed to carry the powder.
L-theanine was identified in 1949 by Japanese researchers as the characteristic amino acid of green tea. It belongs to the non-proteinogenic amino acids — its chemical structure resembles glutamate, the most common excitatory messenger in the human brain. That structural kinship is the reason L-theanine has drawn so much attention in biochemical research over recent decades.
Take 1 capsule daily, swallowed whole with a glass of water (250 ml).
Nutritional information per daily portion (1 capsule)
| Nutritional substance | Per daily portion | %NRV* |
|---|---|---|
| L-theanine | 220 mg | ** |
* Nutrient Reference Values per Regulation (EU) No 1169/2011. ** No recommendation available.
Trade name: Food supplement with the amino acid L-theanine
Ingredients: L-theanine powder, coating agent: hydroxypropylmethylcellulose (capsule shell)
Net quantity: 250 capsules of 267 mg (66.75 g)
What makes L-theanine chemically distinctive?
L-theanine belongs to the so-called non-proteinogenic amino acids — meaning it is not one of the twenty amino acids the body uses to assemble its protein structures. Its chemical formula resembles those of glutamate and glutamine. The structural kinship to glutamate in particular is why L-theanine keeps appearing in neurobiochemical research. Current research also indicates that it can cross the blood-brain barrier — a finding that helps explain the continued attention.
Why a capsule rather than just brewing tea?
A cup of green tea contains roughly 8 to 25 mg of L-theanine, depending on variety and steeping time. Anyone aiming for a steady daily intake in the three-digit milligram range would need to drink many cups — with the matching caffeine load and tannin character. A capsule of pure L-theanine powder bypasses that detour. It has no flavour of its own and contains no caffeine.
⚠️ Mandatory information: Do not exceed the stated recommended daily intake. Food supplements are not a substitute for a varied and balanced diet or a healthy lifestyle.
📦 Storage: Store protected from light, in a cool, dry place, and out of reach of young children.
💬 Frequently asked questions
-
When is the best time to take it?+The recommendation is one capsule daily, swallowed whole with a glass of water. The manufacturer does not specify a particular time of day — many users pick the same time each day, since routines are easier to maintain.
-
How does a capsule compare to a cup of green tea?+A cup of green tea contains L-theanine alongside caffeine, catechins and tannins. This capsule contains only L-theanine powder — so no caffeine and no catechins. Matching a single capsule's L-theanine content through tea would take roughly 10–20 cups a day, depending on the variety.
-
Are the capsules vegan, gluten-free and lactose-free?+The capsule shell is made from hydroxypropylmethylcellulose (HPMC), a plant-based cellulose derivative. The product is therefore vegan and contains neither gelatine nor milk-derived ingredients. The only ingredient inside is L-theanine powder, so it is also free from gluten-containing cereals.
-
How long does a pouch of 250 capsules last?+At the recommended dose of one capsule per day, a 250-capsule pouch lasts roughly eight months. The pouch is sized for long-term use.
-
Can L-theanine be combined with other amino acids or vitamins?+Since the product contains only L-theanine, it generally fits into an existing routine without trouble. Anyone taking several supplements alongside each other has here a single-ingredient, no-blend option.
-
Where is the L-theanine produced?+The L-theanine raw material comes from China — one of the main production locations for L-theanine raw materials worldwide. Packaging and placing on the EU market are handled by vitalundfitmit100 GmbH, based in Jüchen, Germany.
You might also like
Responsible Person (GPSR, EU 2023/988) & EU Importer: vitalundfitmit100 GmbH · Siemensstraße 10 · 41363 Jüchen · Germany · info@vitalundfitmit100.de · Made in: China.
| Item information | Value |
|---|---|
| Application form: | Capsules |
| Product properties: | Preservative-freeVegan |
| Content: | 0,07 kg |
