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L-Theanine

L-Theanine – same-day delivery available. Just make sure the product you want is in stock. Choose products to buy from the comfort of your home and have them delivered to your address, to an AlzaBox, or to one of our stores. Learn more about why shop on Alza.cz.

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7 reasons to shop for L-Theanine on Alza.cz

We have a wide network of stores across the Czech Republic, where we follow all hygiene measures, as well as contactless AlzaBoxes (pick-up points).
You can see the availability of each item right away. Don't forget that we deliver on weekends too.
We accept most payment methods, including contactless and cryptocurrency.
You can easily return or exchange your product at any of our AlzaBoxes.
Need assistance? Our customer support is available 24/7.
We complement our range with accessories and additional services.
You'll find all the essential information for each product, and for some, user reviews to help with your selection.

What to consider when choosing L-Theanine?

If you're planning to get L-Theanine, there are a few aspects that can help you choose the right product. In the left menu, you can use the parametric filter to narrow down the selection to match your preferences. We also recommend sorting by popularity or price.

Make your selection easier. Click through our pre-made filters for the category: L-Theanine

Are you looking for the best L-Theanine? View products sorted by the best selling. If you are looking for top items based on price, check out the lowest priced L-Theanine, or choose to sort by price from highest to lowest.

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BrainMax Sleep Magnesium 320 mg 100 capsules - Magnesium

BrainMax Sleep Magnesium 320 mg 100 capsules

In stock > 5 pcs

10+ variants 2 sizes

Magnesium - magnesium bisglycinate combination MagChel Mg +20 (800 mg, of which 160 g elemental magnesium), cherry juice (50 mg) and GABA (40 mg) in 1 capsule, contains...

Added to cart

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BrainMax Sleep Kit - Food Supplement Set

BrainMax Sleep Kit

In stock > 5 pcs

Buy with code ALZADNY10 1,439,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 10 % s kódem ALZADNY10. Klikněte a kód se uplatní automaticky.

Food Supplement Set contains: Sleep Faster, Sleep Magnesium, Super Ashwagandha

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ADVANCE BrainActive 60 capsules - memory, concentration, energy - Dietary Supplement

ADVANCE BrainActive 60 capsules - memory, concentration, energy

In stock > 10 pcs

Dietary Supplement - combination of natural extracts of Bacopa monnieri 12:1 (100 mg), Guarana (100 mg), Caffeine (50 mg) and others in 1 capsule, gluten-free, lactose or milk...

Added to cart

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MOVit Energy Sleep Complex L-Theanine + Magnesium + Herbal Extracts, 90 capsules - L-theanine

MOVit Energy Sleep Complex L-Theanine + Magnesium + Herbal Extracts, 90 capsules

In stock > 5 pcs

Buy with code ALZADNY15 492,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 15 % s kódem ALZADNY15. Klikněte a kód se uplatní automaticky.

L-theanine - magnesium bisglycinate combination (250 mg), L-Theanine (100 mg), valerian extracts (75 mg), hops (62,5 mg), lemon balm (25 mg), passion fruit (25 mg) and vitamin B6...

Added to cart

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GymBeam Energy CAPS, 120 capsules - Dietary Supplement

GymBeam Energy CAPS, 120 capsules

In stock > 10 pcs

Dietary Supplement - Green Tea Extract (200 mg) and Guarana Extract (137 mg), caffeine anhydrous (120 mg), choline bitartrate (122 mg), L-theanine (100 mg), vitamin B3 (16 mg),...

Added to cart

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NutriWorks L-Theanine 200 mg 90 capsules - Vitamins

NutriWorks L-Theanine 200 mg 90 capsules

In stock > 10 pcs

Buy with code ALZADNY10 503,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 10 % s kódem ALZADNY10. Klikněte a kód se uplatní automaticky.

Vitamins - pure form of amino acid L-Theanine, 200 mg in 1 capsule, Nordic quality, no artificial sweeteners, 90 capsules - 6.21 Kč/pcs

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Bloom Robbins Best Sleep Ever, 60 gummies - Dietary Supplement

Bloom Robbins Best Sleep Ever, 60 gummies

In stock > 10 pcs

Dietary Supplement - vitamin C (12 mg), Lemon balm (Melissa officinalis) (10 mg), Passionflower (Passiflora incarnata) (10 mg), L-theanine (5 mg), vitamin B3 (2.4 mg), vitamin B6...

Added to cart

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PROM-IN Sleep Help, 60 capsules - Dietary Supplement

PROM-IN Sleep Help, 60 capsules

Buy with code ALZADNY20 191,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky.

Dietary Supplement - combination of dried cherry grass extract (400 mg), valerian (125 mg) and L-Theanine (125 mg) in 1 capsule, can be combined very effectively with...

Added to cart

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Flow Focus 3.0 90 capsules - Dietary Supplement

Flow Focus 3.0 90 capsules

In stock > 5 pcs

Dietary Supplement - L-tyrosine (116 mg), L-theanine (100 mg), citicoline (116 mg), green tea (50 mg), Guarana (50 mg), Ginseng (50 mg), caffeine (117 mg), rosehip (33 mg), B...

Added to cart

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Beggs Better Sleep Developed with Marek Dvorak 60 capsules - Dietary Supplement

Beggs Better Sleep Developed with Marek Dvorak 60 capsules

In stock > 10 pcs

Dietary Supplement - to promote evening well-being, relaxation and restful sleep with a combination of plant extracts including valerian, GABA and vitamin B6 - 6.32 Kč/ks

Added to cart

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BrainMax L-Theanine powder, 90 g - L-theanine

BrainMax L-Theanine powder, 90 g

In stock > 10 pcs

L-theanine - L-theanine extract, 0.2 g in 1 scoop, is classified as a non-essential amino acid and is commonly found in green tea, 450 doses, 90 g

Added to cart

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Vilgain L-Theanine 90 capsules - Dietary Supplement

Vilgain L-Theanine 90 capsules

In stock > 10 pcs

Dietary Supplement - 100mg l-theanine in 1 capsule, natural origin from tea, green tea can promote concentration and relaxation - 2.43 Kč/ks

Added to cart

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NutriWorks L-Theanine 50 g - L-theanine

NutriWorks L-Theanine 50 g

In stock > 10 pcs

L-theanine - L-theanine, 300 mg in 1 scoop, an amino acid found, for example, in green tea, in matcha or maté, Nordic quality, clean, instant form, does not contain artificial...

Added to cart

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GymBeam Sleep & Relax 225 g mango and passion fruit - Dietary Supplement

GymBeam Sleep & Relax 225 g mango and passion fruit

In stock > 10 pcs

Dietary Supplement - combination of 12 functional substances, e.g. magnesium (300 mg), Glycine (1000 mg), GABA (500 mg), L-tryptophan (500 mg) and valerian extract (500 mg) in 1...

Added to cart

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GymBeam Sleep & Relax 225 g forest fruit - Dietary Supplement

GymBeam Sleep & Relax 225 g forest fruit

In stock > 10 pcs

Dietary Supplement - combination of 12 functional substances, e.g. magnesium (300 mg), Glycine (1000 mg), GABA (500 mg), L-tryptophan (500 mg) and valerian extract (500 mg) in 1...

Added to cart

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BrainMax Mood Booster, Mood Support Complex, 90 herbal capsules - Dietary Supplement

BrainMax Mood Booster, Mood Support Complex, 90 herbal capsules

In stock > 5 pcs

Dietary Supplement - St. John's wort extract (400 mg), basil sacred (100 mg), Pantothenic acid (18 mg) and other ingredients in 1 dose, vegetable capsules, made without artificial...

Added to cart

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OstroVit Theanine + Tyrosine VEGE, 90 capsules - L-theanine

OstroVit Theanine + Tyrosine VEGE, 90 capsules

In stock > 10 pcs

L-theanine - reduce feelings of stress and improve attention or concentration, may promote weight loss and also eliminate the harmful stimulant effects of caffeine, may improve...

Added to cart

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NATIOS Mind Focus, 60 vegan capsules - Dietary Supplement

NATIOS Mind Focus, 60 vegan capsules

Dietary Supplement - combination of active ingredients, for example, citicoline (200 mg), N-Acetyl L-Tyrosine (150 mg), L-Theanine (100 mg), ginseng extract (50 mg) and rosehip...

Added to cart

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NOW FOODS L-Theanine with decaffeinated green tea, 100 mg + 250 mg, 90 vegetable capsules - Dietary Supplement

NOW FOODS L-Theanine with decaffeinated green tea, 100 mg + 250 mg, 90 vegetable capsules

In stock > 10 pcs

Dietary Supplement 100 mg L-Theanine amino acid, 250 mg decaffeinated green tea, 90 vegetable capsules. - 4.10 Kč/ks

Added to cart

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GymBeam Sleep & Relax 225 g watermelon - Dietary Supplement

GymBeam Sleep & Relax 225 g watermelon

In stock > 10 pcs

Dietary Supplement - combination of 12 functional substances, e.g. magnesium (300 mg), Glycine (1000 mg), GABA (500 mg), L-tryptophan (500 mg) and valerian extract (500 mg) in 1...

Added to cart

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OlaOla Magnesium Sleep Support, 90 capsules - Magnesium

OlaOla Magnesium Sleep Support, 90 capsules

In stock > 10 pcs

Buy with code ALZADNY20 359,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky.

Magnesium - for better falling asleep and deeper rest, highly absorbable magnesium for your evening well-being - 4.99 Kč/ks

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Barny's HypnoX® Melatonin, L-tryptophan and Herbs 30 capsules - Melatonin

Barny's HypnoX® Melatonin, L-tryptophan and Herbs 30 capsules

In stock > 10 pcs

Melatonin - combination of 6 herbs (passionflower, hops rotating, lemon balm, valerian, Lavender narrow-leaved, Chinese tea tree - green tea), L-tryptophan (100 mg) and melatonin...

Added to cart

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Stada SpiLEEP forte 30 tablets - Dietary Supplement

Stada SpiLEEP forte 30 tablets

In stock > 10 pcs

Dietary Supplement - Combination of hop extract (150 mg), L-theanine (100 mg) and valerian (50 mg) in 1 tablet, 30 tablets - 6.97 Kč/ks

Added to cart

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NutriGums Mind & Focus Complex 60 gummies - Dietary Supplement

NutriGums Mind & Focus Complex 60 gummies

In stock > 5 pcs

Dietary Supplement - a combination of Ashwagandha root extract (50 mg), green tea leaf extract (10 mg), vitamin B5 (3.6 mg), B6 (8.4 mg), B12 (1.5 µg) and D3 (1.5 µg) in 1 candy,...

Added to cart

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In the category L-Theanine on Alza.cz, we currently have a total of 45 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app. Continue

No longer sold

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