lamberts lamberts



In Stock

L-theanine is an amino acid that is found in high levels in tea, and is believed to contribute to the relaxing effects tea gives. L-theanine has been shown to raise levels of GABA (gamma-aminobutyric acid), and alpha waves in the brain, and this can result in a calming effect without drowsiness.

More details

29,03 €

34,15 €


We ship worldwide

Delivery in 48h

Delivery up to 48 hours
  • Free shipping when the order total is 50€

  • Free cash on delivery when the order total is 100€

  • Free shipping & cash on delivery for all the Western Suburbs of Attica
  • A white coated oval tablet.
  • 60 tablets.
  • May be helpful at times of stress and anxiety.
  • Some studies show a use for L-theanine in immune health.
  • Naturally present alkylamines may help encourage white blood cell activity.
  • A high strength one a day product.

Tea certainly contains a surprising amount of caffeine and yet is not generally considered as a stimulant in the same way that coffee is. Some researchers think that this maybe because tea contains something else, in effect cancelling out the caffeine. 

The mystery ingredient in tea is now thought to be L-theanine. Whilst it is not unique to tea, the tea plant seems a particularly rich source. When L-theanine has been given to people in clinical studies many of the positive effects of tea can be reproduced. 

Lamberts L-theanine is the purest form available and is the one used in clinical studies. It is painstakingly produced by a process of fermentation. Lamberts do not use L-theanine extracted from tea as this contains a high proportion of D-theanine which is not believed to be as active as the L-theanine form. Better still, they have just increased the potency of this product to 200mg for the original 100mg price. 

As with all Lamberts amino acids, Lamberts L-theanine is presented in its free-form for maximum absorption. Each capsule provides a full 200mg of L-theanine. Unlike many supplements that need to be part of a regime for several weeks before a response may be noted, frequently with L-theanine there is a response within the first few hours of use. 

1 tablet daily. 

Disintegration Time: 
Less than 1 hour. 

Suitable for vegetarians. 

Lamberts L-Theanine is not recommended for pregnant or lactating women.

Ingredients per tablet: 
L-Theanine 200mg. 
Tableted with: Calcium Carbonate, Cellulose, Tablet Coating (Hydroxypropyl Methylcellulose, Colour: Titanium Dioxide, Glycerin), Silicon Dioxide, Stearic Acid, Magnesium Stearate. 

Write a review


Lamberts® Super Strength Antioxidant Complex contains a powerful combination of plant antioxidants which we have purposely selected on their high polyphenol content. Interestingly, certain plant phenolic compounds appear to be more effective antioxidants than vitamins C and E.