L-Theanine

vanaf 13.15 / 120 capsules

L-Theanine is, as the name suggests, a substance that occurs naturally in tea leaves. In 1950 it was already extracted from gyokuro leaves, a type of green tea.

The substance Theanine is an amino acid, in other words a building block for proteins. Although it occurs naturally in tea, supplementation is the main source of L-Theanine. L-Theanine has structural similarities to glutamine. It affects several neurotransmitter systems in the brain (Dop@mine, GABA, Glutamate, Serotonin).

L-Theanine is quickly absorbed after ingestion and is often combined with Caffeine or Magnesium for cognitive support.

120 capsules 18.92 18.75 / 120 capsules
240 capsules 32.20
15% stapelkorting
15.95 / 120 capsules
360 capsules 39.81
30% stapelkorting
13.15 / 120 capsules

Description

What is L-Theanine?

L-Theanine is, as the name suggests, a substance that occurs naturally in the leaves. In 1950 it was already extracted from gyokuro leaves, a type of green tea. The substance Theanine is an amino acid, in other words a building block for proteins. While it is possible in nature’s tea, supplementation is the main source of L-Theanine. L-Theanine has structural similarities to glutamine. Theanine is quickly absorbed.

Properties

L-theanine is a glutamine-like amino acid that is water-soluble. The unique amino acid does not belong to the essential of non-essential amino acids and is not found in body proteins. Theanine, several different neurotransmitter systems in the brain (Dop@mine, GABA Glutamate, Serotonin).

Dop@mine

(Why the @? Otherwise Google will mark this page as an illegal drug page?!?)
This is the reward substance your brain craves. It serves to develop to look for the things you need to survive.

GABA

Responsible for the right of muscle tone, Gamma-Aminobutyric Acid (GABA) also regulates the communication between brain cells. It can arise from us by reducing the speed our neurons fire.

Glutamate

The cells most abundant neurotransmitter in the offending, glutamate, is used by nerve cells to transmit similarities to others.

Serotonin

Serotonin is related to our well-being and happiness, and our thoughts are influenced by activities and effects of sunlight. It also aids in mood balance, sleep cycle and our digestion.

L-Theanine is also made in combination with Caffeine, often in the ratio 2:1 – L-Theanine:Caffeine.

In addition, it is often combined with Magnesium for Cognitive Support.

External Resources

Next Valley may not be overstated about properties and uses of L-Theanine if they are not approved as a health claim by the European Commission.

For more information, we direct you to external sources.

Dose

The most common dose to take L-Theanine is 200 mg per day. Take on an empty stomach with water between meals. Always start with the lowest dose, if the effect is insufficient, this can easily be adjusted upwards.

Side effects

There are very few known side effects of L-Theanine. There are animal studies in which these animals were given huge doses of L-Theanine for weeks and the conclusion was that even at these doses there was no measurable toxicity. Too little research has been done on side effects of breastfeeding, so it is used when you are pregnant or breastfeeding.

Ingredients

Daily Recommended Dosage: 1 to 2 capsules

Ingredients per 1 capsule

200mg L-Theanine

Gelatin capsule
StarCap 1500® (capsule filler)

Instructions for use

Do not use if you are under 18, or if you are pregnant or breastfeeding. Do not use if you have high blood pressure or medical complications. Always consult an expert before using new food supplements. A healthy lifestyle is important, as is a varied, balanced diet for which supplements are no substitute. Do not exceed recommended dosage.

Recommended dosage: As a dietary supplement for adults, take 1 to 2 capsules daily, preferably on an empty stomach or between meals with water.

Keep cool, dry and closed.

Certificate of Analysis

A Certificate of Analysis may sometimes be referred to as a COA, a CofA, a Certificate of Conformity, or a Certificate of Conformity. It is a document certifying that a product delivered meets the specifications of the recipient.

Certificate of Analysis for L-Theanine

The content of a Certificate of Analysis varies by industry and product category. Below we discuss the content of a COA that is generally accepted for the raw materials processed in Next Valley products.

What is a Certificate of Analysis?

What is a health claim?

A health claim is any statement about a relationship between nutrition and health.

Legally, Next Valley is not allowed to make statements about the properties and uses of L-Theanine if they have not been approved as a health claim by the European Commission.

The European Commission approves various health claims, provided they are based on scientific evidence and can be easily understood by consumers. The European Food Safety Authority (EFSA) is responsible for evaluating the scientific evidence to support health claims.

The scientific evidence is provided by the health claim applicant. These examinations are usually carried out by the applicant or are known at the time of the application. New studies are only included in the evaluation by EFSA if a new application is made.

Claim: Relief of psychological stress
Claim ID: 1598
Year of evaluation: 2011
Source EFSA: j.efsa.2011.2238
EFSA conclusion: no cause-effect relationship
The claimed effects are “relaxation” and “neurological functions”. The target population is assumed to be the general population. In the context of the proposed wordings, clarifications from Member States and references provided, the alleged effects are believed to relate to psychological stress relief. Relief from psychological stress can be a beneficial physiological effect.

The panel concludes that a causal relationship has not been established between the consumption of L-theanine from Camellia Sinensis (L.) Kuntze (tea) and relief of psychological stress.


Claim: Reduction of menstrual complaints
Claim ID: 1599
Year of evaluation: 2011
Source EFSA: j.efsa.2011.2238
EFSA conclusion: no cause-effect relationship
The claimed effect is “menstrual health”. The target population is believed to be women with premenstrual syndrome. Reduction of menstrual complaints is a beneficial physiological effect.

The panel concludes that a causal relationship has not been established between the consumption of L-theanine from Camellia Sinensis (L.) Kuntze (tea) and reduction of menstrual symptoms.


Claim: Improve cognitive function
Claim ID: 1600, 1601, 1935
Year of evaluation: 2011
Source EFSA: j.efsa.2011.2238
EFSA conclusion: no cause-effect relationship
The claimed effects are “physical and mental stimulation (hydration and caffeine)”, “mental and cognitive health”, “cognitive function”, “neurological functions”, “physiologically antagonistic to caffeine”, and “cognitive performance: focused attention”. The target population is assumed to be the general population. Improving cognitive function is a beneficial physiological effect.

A causal relationship between the consumption of L-theanine from Camellia Sinensis (L.) Kuntze (tea) and improvement of cognitive function has not been established.


Claim: Maintenance of normal sleep
Claim ID: 1737
Year of evaluation: 2011
Source EFSA: j.efsa.2011.2238
EFSA conclusion: no cause-effect relationship
The claimed effects are “mental and cognitive health” and “relaxation”. The target population is assumed to be the general population. In the context of theproposed formulations and clarifications by Member States it is believed that the claimed effects relate to the maintenance of normal sleep. Maintaining normal sleep is a beneficial physiological effect.

The panel concludes that a causal relationship has not been established between the consumption of L-theanine from Camellia Sinensis (L.) Kuntze (tea) and the maintenance of normal sleep.