L-Theanine 250mg in Capsules and Vegan Powder

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Best before: 31/12/2026

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Warning about our product information

It provides 250mg of L-Theanine per vegetable capsule. Suitable for vegans.

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What is L-theanine 250mg?

L-theanine 250mg by EssentialSeries is a food supplement in vegetable capsules based on the amino acid L-theanine, pantothenic acid and vitamin B12.

Is L-theanineis the predominant amino acid in tea leaves and constitutes up to 50% of the total amino acids in the plant. The amino acid makes up 1-2% of the dry weight of green tea leaves (Montvale, 2008).

L-theanine 250mg is 100% suitable for vegetarians and vegans.

L-theanine 250mg properties

Alongside the amino acid L-theanine, we have added pantothenic acid and vitamin B12 to the formula.

Pantothenic acid

Pantothenic acid contributes to normal energy metabolism.
Pantothenic acid contributes to the synthesis and normal metabolism of steroid hormones, vitamin D and certain neurotransmitters.
Pantothenic acid helps to reduce tiredness and fatigue.

Vitamin B12

Vitamin B12 contributes to normal energy metabolism.
Vitamin B12 contributes to normal homocysteine metabolism.
Vitamin B12 helps to reduce tiredness and fatigue.
Vitamin B12 contributes to the process of cell division.

Why buy it at HSN?

Discover the peculiarities that make our amino acid a unique food supplement.

Concentration

L-theanine is an amino acid that is naturally present in tea, especially black tea, but its concentrations are low, in fact most studies use minimum doses of 100mg, this dose is approximately 4 times higher than what we can find naturally in a cup of black tea.

L-theanine by HSN product provides a high dose of the amino acid in its purest form in convenient capsules, no less than 250mg per capsule.

Suitable for vegans

L-theanine, being an amino acid found in tea leaves, is naturally vegan.

However, have you noticed that many L-theanine supplements are not?

This is because companies use gelatine as a glazing agent in the manufacture of capsules. Gelatine is derived from livestock and is therefore not vegetarian.

Our capsules are made from a vegetable polymer, making the product suitable for vegetarians and vegans.

Which products L-theanine 250mg be combined with?

You can combine it with other products from the EssentialSeries range such as GABA, or with the L-glycine of the RawSeries range.

We have created based on caffeine+theanine specifically designed for you! It's called smart caffeine why not check it out??

For more information

Giesbrecht, T., Rycroft, J. A., Rowson, M. J., & De Bruin, E. A. (2010). The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness. Nutritional Neuroscience, 13(6), 283–290.
Hendler, S. S., Rorvik, D. M., & Thomson Reuters. (2008). PDR for Nutritional Supplements. Toronto, Canadá: Thomson Reuters.
Hidese, S., Ogawa, S., Ota, M., Ishida, I., Yasukawa, Z., Ozeki, M., & Kunugi, H. (2019). Effects of L-Theanine administration on stress- related symptoms and cognitive functions in healthy adults: A randomized controlled trial. Nutrients, 11(10), 2362.
Wakabayashi, C., Numakawa, T., Ninomiya, M., Chiba, S., & Kunugi, H. (2012). Behavioral and molecular evidence for psychotropic effects in l-theanine. Psychopharmacology, 219(4), 1099–1109.
Williams, J. L., Everett, J. M., D’Cunha, N. M., Sergi, D., Georgousopoulou, E. N., Keegan, R. J., … Naumovski, N. (2019). The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review. Plant Foods for Human Nutrition.

Nutritional Info.

Nutritional Facts
L-THEANINE 250mg - 120 veg caps

daily doseper serving

Serving size: 1 veg caps
daily dose: 1 veg caps
Servings per container: 120

	Daily amount Amount per serving	NRV*	NRV*
L-Theanine	250mg 250mg	++	++
Pantothenic Acid	1.8mg 1.8mg	30%	30%
of calcium D-pantothenate	1.9mg 1.9mg	++	++
Vitamin B12 (as methylcobalamin)	0.7µg 0.7µg	30%	30%

NRVs (Nutrient Reference Values) established in Regulation (EU) 1169/2011 of 25 October 2011. †† NRVs are not established on this occasion.

Ingredients L-THEANINE 250mg - 120 veg caps

L-theanine (produced by a vegetable fermentation process), vegetable capsule [glazing agent (hydroxypropyl methyl cellulose)], anti-caking agents (magnesium salts of fatty acids, calcium silicate), calcium D-pantothenate (pantothenic acid), maltodextrin, methylcobalamin (vitamin B12).

Warnings L-THEANINE 250mg - 120 veg caps

Store in a cool (below 25°C), dry and dark place. Do not exceed the stated recommended daily dose. Keep out of reach of the smallest children. Nutritional supplements should not be used to replace a balanced diet.

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