Where can you buy L-Theanine in local stores or from online vendors and what is the best price?
Interest in L-Theanine has spiked recently as more and more individuals seek out natural ways to enhance cognitive power and balance mood.
High quality natural nootropics are now more affordable and widely available online.
If it’s your first time buying L-Theanine or any nootropic, make sure you get the facts on each products’ benefits, side effects, dosages, and costs, before you start shopping. Here’s all the info you need about this natural nootropic and how to buy L-Theanine products that are right for you.



- Supports focus, attention & mood
- Helps to reduce stress & anxiety
- Neuroprotective & increases NGF
L-Theanine – A Naturally-Sourced Brain Booster
Related Topics
Have you ever sipped a cup of green tea? If so, then you have already sampled some of the benefits of L-Theanine.
This naturally occurring amino acid is found in the leaves of green tea strains of Camellia sinensis, and is responsible for many of green tea’s mind and body benefits.
When you buy L-Theanine, you are actually choosing a natural psychoactive neurochemical which can cross the blood-brain barrier to balance and stimulate your nervous system in a variety of ways.
L-Theanine stimulates the production of GABA, a key inhibitory neuro-chemical which monitors and diffuses over-activity of firing neurons.
GABA literally prevents stress messages from being sent to cell receptors, limiting the overreaction that can sometimes occur in your nervous system. Conditions resulting from unnecessary Anxiety, nervousness, and fear can occur from overstimulated neurons; GABA helps to calm the impulses that causes these emotions, and the ability to calmly focus is boosted.
L-Theanine, which is very similar to the amino acid L-Tryptophan, also can help promote deep relaxation and good sleep. It does this by generating alpha waves, electrical impulses which accompany meditative states.
In addition to increasing GABA levels, L-Theanine is believed to help increase the production of the neurotransmitter Dopamine, a key regulator of homeostasis. L-Theanine also stimulates the release of Norepinephrine and Serotonin, inspiring feelings of peacefulness and pleasure as well as focus and motivation.
Is It Legal To Buy L-Theanine?
L-Theanine for sale online is completely legal to buy, possess, and consume. Since it was first discovered by Japanese scientists in 1949, it has been freely sold around the world as a mood enhancer and food supplement.
In fact, the aromatic umami taste of L-Theanine has often been used to add flavor to savory dishes, independent of its psychoactive qualities. It has a GRAS (“generally recognized as safe”) rating from the Food and Drug Administration (FDA). For this reason, it can be purchased by anyone at anytime without any legal hassle, like many other natural nootropics.
L-Theanine is available as a dietary supplement only, and the FDA has not approved L-Theanine to prevent or treat any conditions.
How To Buy L-Theanine Safely
When you are ready to buy L-Theanine, do a little research on various online vendors before you purchase. Look for a few basic hallmarks of a quality vendor.
Is the vendor based in the U.S.? Do they accept forms of payment that are trackable, such as PayPal? Have their products been screened for purity and rated by high performance liquid chromatography (HPLC) testing? Do they have clear shipping practices?
If the answers to all of these questions are satisfactory, go ahead and make your purchase without fear. Nootropics are now widely discussed in online forums. If you have a question about a particular vendor of L-Theanine for sale or want a recommendation, check out what other nootropic users have to say about the subject.
Common Increments and Stacked Products
L-Theanine is commonly sold as a dry powder. You can typically find L-Theanine for sale in 50 or 100 gram increments.
Considering that a median dose of tablets or capsules for sale online is around 200 milligrams per pill, these bulk amounts should last the average user quite a while, even if taken daily.
Your personal dosage will depend on the type of effects you’re looking for. Most users report that a feeling of gentle, alert focus can begin at just 50 milligrams, while L-Theanine’s more powerfully relaxing effects are often better experienced at 200 to 400 milligrams per day.
L-Theanine is also available as a part of “stacked” combo products like Alpha Brain. In addition to L-Theanine, Alpha Brain also includes B-6 vitamins, L-Tyrosine, AC-11, and other herbs and extracts which stimulate powerful cognitive enhancement, especially when taken together. Another popular stack is Smart Caffeine which combines L-Theanine with caffeine, similar to the combination found in natural Green Tea.
L-Theanine Pricing
Especially when compared to conventional pharmaceuticals which claim to create similar benefits, L-Theanine powder is extremely inexpensive and cost effective. A 50 gram bottle of L-Theanine wholesales for less than $15. With potentially hundreds of doses per bottle, that comes out to just pennies per dose.
Even more savings can be found when buying larger quantities, as 100 gram bottles typically sell for around $25. You should avoid purchasing branded formulations of this product like Suntheanine since they tend to cost a much more without providing additional advantages.
L-Theanine capsules can be more convenient to take then powder, but you often will pay much more for that convenience. If you prefer to use L-Theanine capsules rather than bulk powder, consider purchasing a cheap capsule-filling machine to make your own capsules at home.
Most people will stack L-Theanine with other nootropics in order to improve their results. One popular brain supplement that contains this ingredient is Alpha Brain from Onnit Labs. Nootropic supplement stacks like Alpha Brain sell for around $35 for 30 doses. If you were to buy the constituent components separately, the same number of doses would most likely be more expensive, so it’s a great deal.
Whether you want to buy L-Theanine on its own as a part of a combo, it’s affordable either way, and is a good natural nootropic to consider adding to your supplement routine.
- Camfield DA, Stough C, Farrimond J, Scholey AB. Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis. Nutr Rev. 2014
- Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. L-theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Appetite. 2010
- Kurihara S, Hiraoka T, Akutsu M, Sukegawa E, Bannai M, Shibahara S. Effects of (L)-cystine and (L)-theanine supplementation on the common cold: a randomized, double-blind, and placebo-controlled trial. J Amino Acids. 2010
- Yamamoto S, Kimura T, Tachiki T, Anzai N, Sakurai T, Ushimaru M. The involvement of L-type amino acid transporters in theanine transport. Biosci Biotechnol Biochem. 2012
- Wise LE, Premaratne ID, Gamage TF, Lichtman AH, Hughes LD, Harris LS, Aceto MD. l-theanine attenuates abstinence signs in morphine-dependent rhesus monkeys and elicits anxiolytic-like activity in mice. Pharmacol Biochem Behav. 2012
- Conde VR, Alves MG, Oliveira PF, Silva BM. Tea (Camellia Sinensis (L.)): a Putative Anticancer Agent in Bladder Carcinoma? Anticancer Agents Med Chem. 2014
- Chatterjee S, Chatterjee A, Roy S, Bera B, Bandyopadhyay SK. L-Theanine healed NSAID-induced gastric ulcer by modulating pro/antioxidant balance in gastric ulcer margin. J Nat Med. 2014
- Desai MJ, Gill MS, Hsu WH, Armstrong DW. Pharmacokinetics of theanine enantiomers in rats. Chirality. 2005
Article last updated on: March 18th, 2018 by Nootriment