L-Theanine 400mg Capsules
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Product Details
L-theanine is an amino acid found in green and black tea. Studies show that, even with 50mg doses mimicking normal dietary behaviour, theanine increases production of alpha brain waves, which are the brain waves that increase creativity and decrease low mood.
Theanine is a glutamate antagonist, meaning it blocks glutamate receptors in the brain, which is part of the reason some people report a calming effect after taking theanine. Theanine has also shown promise as a sleep aid and in stopping the release of histamine from mast cells.
Most research on the basic actions of L-theanine has been done in animals. Some preliminary human studies, typically using doses of L-theanine about 10 to 20 times higher than that in a cup of tea, have suggested possible benefits, such as the following:
In a Japanese study in the Journal of Physiological Anthropology, college students who took L-theanine experienced less everyday stress and had smaller increases in normal cardiovascular health when under psychological or physical stress than when they took a placebo.
Similarly, another Japanese study in Pharmacology, Biochemistry, and behaviour found that graduate students who took L-theanine experienced less everyday stress (as measured by a questionnaire and by a salivary marker for stress) when they were assigned stressful work in a pharmacy, compared to a placebo.
In a Canadian study in Alternative Medicine Review, L-theanine improved some aspects of sleep quality in boys with attention-deficit hyperactivity disorder (focus).
In a preliminary Israeli study in the Journal of Clinical Psychiatry, L-theanine helped support everyday stress symptoms and augment antipsychotic treatment in patients (ages 19 to 55) with schizophrenia.
L-theanine promotes relaxation and facilitates sleep by contributing to a number of changes in the brain:
Boosts levels of GABA and other calming brain chemicals. L-theanine elevates levels of GABA, as well as serotonin and dopamine. These chemicals are known as neurotransmitters, and they work in the brain to regulate emotions, mood, concentration, alertness, and sleep, as well as appetite, energy, and other cognitive skills. Increasing levels of these calming brain chemicals promotes relaxation and can help with sleep.
helps maintain normal levels of “excitatory” brain chemicals. At the same time it is increasing chemicals that promote feelings of calm, L-theanine also helps maintain levels of chemicals in the brain that are linked to stress and everyday stress. This may also be a way that L-theanine can protect brain cells against stress and age-related damage.
Enhances alpha brain waves. Alpha brain waves are associated with a state of “wakeful relaxation.” That’s the state of mind you experience when meditating, being creative, or letting your mind wander in daydreaming. Alpha waves are also present during REM sleep. L-theanine appears to trigger the release of alpha-waves, which enhances relaxation, focus, and creativity. One of the appealing aspects of L-theanine is that it works to relax without sedating. That can make L-theanine a good choice for people who are looking to enhance their “wakeful relaxation,” without worrying about becoming sleepy and fatigued during the day.
Stacks well with
Common complementary options (depending on your goals):
-
5 HTP 400mg Capsules
Commonly paired to complement your routine. -
Sleep Supplement Bundle
Commonly paired to complement your routine. -
5 HTP 100mg Tablets
Commonly paired to complement your routine.
Ingredients
L-Theanine 400mg,Brown Rice Flour (GF), Bovine Gelatine Capsule Shell
Full ingredient list:The ingredients above are the complete formula for this product. We do not add undisclosed "hidden" fillers. If you have allergies or dietary requirements, please always check the label on arrival as it is the most up to date source.
Dosage
Suggested use:Please follow the directions on the label. If you are new to supplements, start with the lowest suggested intake and build a routine that you can maintain.
How to use
Take one capsule daily with food. Take as a food supplement or as directed by a healthcare professional.
If you are taking any prescribed medication or have any medical conditions always consult your doctor or pharmacist before taking vitamins or supplements.
Keep out of sight and reach of young children. Do not exceed stated recommended intake. Food supplements must not be, and are not intended to be used as a substitute for a varied and balanced diet and a healthy lifestyle. Store in a cool, dry place. Often used as part of an evening wind-down routine alongside good sleep habits.
Delivery:Orders are dispatched from the United Kingdom. Delivery options and estimated timescales are shown at checkout.
Cautions
Cautions:Food supplements should not be used as a substitute for a varied diet and healthy lifestyle. Do not exceed the recommended daily intake.
- Not recommended for children.
- If you are pregnant, breastfeeding, taking medication or under medical supervision, please consult a healthcare professional before use.
- If you experience any adverse reactions, discontinue use and seek advice.
- Keep out of reach of young children.
Often used as part of an evening wind-down routine alongside good sleep habits.
Dietary Suitability
Gluten Free
Halal
Kosher
Lactose Free
Shipping & Returns
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
