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L-Theanine – natural supplement for balance and well-being

93 products

L-theanine from green tea. Relaxation without drowsiness, often with caffeine.

Weider - Premium L-Glutamine - 400g – Weider packaging
-29%

Weider

Weider - Premium L-Glutamine - 400g

€22.00€31.00

Delivery 1–2 days

MuscleTech - Platinum 100% Glutamine - 300g – Muscletech packaging

Muscletech

MuscleTech - Platinum 100% Glutamine - 300g

€25.00

Backorder · 5–7 business days

BioTechUSA - Glutamine Zero – BioTechUSA packaging
2 variants

BioTechUSA

BioTechUSA - Glutamine Zero

from€29.00

Backorder · 5–7 business days

Applied Nutrition - L-Glutamine, Micronized – Applied Nutrition packaging
2 variants

Applied Nutrition

Applied Nutrition - L-Glutamine, Micronized

from€18.00

Backorder · 5–7 business days

Nutrend - Glutamine – Nutrend packaging
2 variants

Nutrend

Nutrend - Glutamine

from€15.00

Delivery 1–2 days

Allnutrition - Glutamine Recovery Amino – Allnutrition packaging
8 variants

Allnutrition

Allnutrition - Glutamine Recovery Amino

from€16.00

Backorder · 5–7 business days

Amix - Glutamine Micro Powder - 500g – Amix packaging

Amix

Amix - Glutamine Micro Powder - 500g

€28.00

Backorder · 5–7 business days

Now Foods - L-Glutamine Powder (170g) – NOW Foods packaging
-19%

NOW Foods

Now Foods - L-Glutamine Powder (170g)

€13.00€16.00

Delivery 1–2 days

Trec Nutrition Glutamine High Speed 500 g powder – Trec packaging
2 variants

Trec

Trec Nutrition Glutamine High Speed 500 g powder

from€21.00

Backorder · 5–7 business days

OstroVit Glutamine – OstroVit packaging
9 variants

OstroVit

OstroVit Glutamine

from€15.00

Delivery 1–2 days

Amix - L-Glutamine - 1000g – Amix packaging

Amix

Amix - L-Glutamine - 1000g

€48.00

Backorder · 5–7 business days

OstroVit Natural Glutamine 500 g powder – OstroVit packaging

OstroVit

OstroVit Natural Glutamine 500 g powder

€15.00

Delivery 1–2 days

Olimp Labs - L-Glutamine Powder 500 g – Olimp Labs packaging
-29%

Olimp Labs

Olimp Labs - L-Glutamine Powder 500 g

€15.00€21.00

Delivery 1–2 days

NOW Foods - L-Theanine, 200mg (90 Vcaps) – NOW Foods packaging

NOW Foods

NOW Foods - L-Theanine, 200mg (90 Vcaps)

€35.00

Backorder · 5–7 business days

OstroVit - L-Theanine + L-Tyrosine - 90 capsules – OstroVit packaging

OstroVit

OstroVit - L-Theanine + L-Tyrosine - 90 capsules

€11.00

Backorder · 5–7 business days

Now Foods - L-Theanine With Decaf Green Tea, 100mg - 90 Vcaps – NOW Foods packaging

NOW Foods

Now Foods - L-Theanine With Decaf Green Tea, 100mg - 90 Vcaps

€16.00

Delivery 1–2 days

Doctor's Best L-Theanine 150mg - 90 Veggie Caps – Doctor's Best packaging

Doctor's Best

Doctor's Best L-Theanine 150mg - 90 Veggie Caps

€34.00

Backorder · 5–7 business days

Doctor's Best - L-Glutamine Powder 300g – Doctor's Best packaging

Doctor's Best

Doctor's Best - L-Glutamine Powder 300g

€27.00

Backorder · 5–7 business days

Yamamoto - Glutamine Peptide 500 mg tablets – Yamamoto Research packaging
-19%

Yamamoto Research

Yamamoto - Glutamine Peptide 500 mg tablets

€39.00€48.00

Delivery 1–2 days

Weider L-Glutamine 100% Pure Free Form – 400g – Weider packaging

Weider

Weider L-Glutamine 100% Pure Free Form – 400g

€47.00

Backorder · 5–7 business days

Healthy Origins - L-Glutamine - 300g Powder – Healthy Origins packaging

Healthy Origins

Healthy Origins - L-Glutamine - 300g Powder

€29.00

Backorder · 5–7 business days

Weider - L-Glutamine - 300g – Weider packaging
Out of stock

Weider

Weider - L-Glutamine - 300g

€25.00
Trec - L-Glutamine Micronized T6 - 240 capsules – Trec packaging
Out of stock

Trec

Trec - L-Glutamine Micronized T6 - 240 capsules

€18.00
Revive Glutamine - 300g powder, 10g per serving – Revive packaging

Revive

Revive Glutamine - 300g powder, 10g per serving

€26.00

Backorder · 5–7 business days

Prosupps Glutamine 300g Powder – Prosupps packaging

Prosupps

Prosupps Glutamine 300g Powder

€23.00

Backorder · 5–7 business days

Olimp Labs Glutamine Mega Caps 1000 mg – 120 capsules – Olimp Labs packaging

Olimp Labs

Olimp Labs Glutamine Mega Caps 1000 mg – 120 capsules

€19.00

Backorder · 5–7 business days

Mutant - Glutamine - 300g powder – Mutant packaging
Out of stock

Mutant

Mutant - Glutamine - 300g powder

€20.00
Yango L-Glutamine 90 capsules – Yango packaging

Yango

Yango L-Glutamine 90 capsules

€11.00

Delivery 1–2 days

Solgar L-Glutamine 500 mg - 100 Vegetable Capsules – Solgar packaging
-31%

Solgar

Solgar L-Glutamine 500 mg - 100 Vegetable Capsules

€18.00€26.00

Delivery 1–2 days

Swanson Pure Energy - 60 Vegetarian Capsules – Swanson packaging
-20%

Swanson

Swanson Pure Energy - 60 Vegetarian Capsules

€72.00€90.00

Delivery 1–2 days

OstroVit L-Theanine 200 mg - 90 capsules – OstroVit packaging

OstroVit

OstroVit L-Theanine 200 mg - 90 capsules

€7.00

Delivery 1–2 days

Scitec Nutrition L-Glutamine 5g Powder – Scitec Nutrition packaging
2 variants

Scitec Nutrition

Scitec Nutrition L-Glutamine 5g Powder

from€39.00

Backorder · 5–7 business days

BioTechUSA - L-Glutamine 500g powder – BioTechUSA packaging
2 variants

BioTechUSA

BioTechUSA - L-Glutamine 500g powder

from€26.00

Delivery 1–2 days

Kevin Levrone Gold Glutamine 300g – Kevin Levrone packaging
-29%

Kevin Levrone

Kevin Levrone Gold Glutamine 300g

€15.00€21.00

Delivery 1–2 days

GAT Sport - L-Glutamine - 300g – GAT Sport packaging
Out of stock

GAT Sport

GAT Sport - L-Glutamine - 300g

€25.00
Skull Labs Glutamine – 300g Powder – Skull Labs packaging
Out of stock

Skull Labs

Skull Labs Glutamine – 300g Powder

€17.00
Life Extension Theanine XR Stress Relief 400 mg - 30 tablets – Life Extension packaging

Life Extension

Life Extension Theanine XR Stress Relief 400 mg - 30 tablets

€25.00

Backorder · 5–7 business days

Optimum Nutrition Glutamine Powder 630g – Optimum Nutrition packaging

Optimum Nutrition

Optimum Nutrition Glutamine Powder 630g

€40.00

Backorder · 5–7 business days

Amix - Coffi Time - 90 capsules – Amix packaging

Amix

Amix - Coffi Time - 90 capsules

€23.00

Backorder · 5–7 business days

Nature's Way L-Theanine 100 mg - 60 Vegetable Capsules – Nature's Way packaging

Nature's Way

Nature's Way L-Theanine 100 mg - 60 Vegetable Capsules

€22.00

Backorder · 5–7 business days

What is L-Theanine?

L-Theanine is an amino acid primarily found in the leaves of green tea (Camellia sinensis). It has become popular as a dietary supplement due to its unique properties that distinguish it from other amino acids. L-Theanine affects brain activity in a way that can contribute to a sense of calm and focus without causing drowsiness. This amino acid is often taken as a supplement by individuals seeking to support their mental balance in daily life.

L-Theanine is water-soluble and is rapidly absorbed by the body when consumed, either through tea or as a concentrated supplement. Due to its natural occurrence in tea, L-Theanine is a popular choice for those looking for mild and natural methods to complement their health.

Benefits 26amp; Uses

L-Theanine is primarily used to complement a healthy lifestyle and has several appreciated uses. Here are some of the most common reasons many choose L-Theanine as a supplement:

  • Support for mental relaxation: L-Theanine can contribute to a calmer mood without negatively affecting alertness.
  • Promote focus and concentration: Many use L-Theanine to maintain sharpness and presence during workdays or studies.
  • Complement to caffeine: Often combined with caffeine to reduce any anxiety or restlessness that caffeine may cause.
  • Natural origin: Since L-Theanine comes from green tea, it can be an attractive option for those seeking natural supplements.
  • Flexible dosage forms: Available in capsules, tablets, and powder, making it easy to tailor to individual needs.

How to choose the right L-Theanine

Choosing the right L-Theanine supplement can affect both the experience and the effect. Here are some tips to make an informed choice when buying L-Theanine online:

  • Check the dosage: Common doses often range between 100 and 200 mg per serving, but adjust according to your needs and any recommendations.
  • Quality and purity: Choose products free from unnecessary additives and with clear information about ingredients and manufacturing processes.
  • Supplement form: Consider whether you prefer capsules for easy dosing or powder that can be mixed into drinks.
  • Certifications: Products with quality and safety certifications can provide extra assurance.
  • Reviews and feedback: Read customer reviews to get an idea of the product’s effect and user-friendliness.
  • Combination with other supplements: If you use other products, such as caffeine supplements or adaptogens, some L-Theanine products may suit you better than others.

By considering these factors, you can find the best L-Theanine supplement for your specific needs.

Popular variants

L-Theanine is available in several forms and variants that make it easy to find a suitable supplement:

  • Capsules: One of the most popular forms, easy to dose and carry.
  • Tablets: Similar to capsules but may contain different fillers and binders depending on the manufacturer.
  • Powder: L-Theanine in powder form can be mixed into water, juice, or smoothies. Offers flexibility in dosing and use.
  • Combination products: L-Theanine is often combined with caffeine or other amino acids and adaptogens for specific effect profiles.
  • Purity level: Some products offer L-Theanine with extra high purity or organic origin, which may be of interest to the quality-conscious.

Frequently asked questions about L-Theanine

What is the difference between L-Theanine and other amino acids?

L-Theanine differs from other amino acids by its unique ability to influence brain activity and promote relaxation without making you tired. It is not a building block for proteins in the same way as many other amino acids, which makes it particularly popular as a supplement.

Can I take L-Theanine together with caffeine?

Yes, L-Theanine is often taken together with caffeine to mitigate any side effects such as nervousness or palpitations. The combination can provide a more balanced and pleasant effect, making it popular among people who want to maintain focus while feeling calmer.

How quickly does L-Theanine work after intake?

L-Theanine is absorbed relatively quickly in the body and many experience effects within 30 to 60 minutes after intake. The effect can be individual and varies depending on dose and whether you take it on an empty stomach or with food.

For more information about other amino acids, please visit our category Amino Acids or discover more supplements that can complement your health.