Do you struggle with excessive stress? Is your memory leaving you dumbfounded? Perhaps you’re getting older, and are having trouble keeping track of time. Well, worry no more, for L-Theanine may just be the solution you’ve been waiting for. This particular Nootropic is incredibly effective in terms of fighting off stress, keeping your mood levels elevated, and even increasing your memory across all three spectrums.  

L-Theanine; A Synopsis

If you haven’t heard of this particular Nootropic before, perhaps you’ve heard of it under the following names. Theanine, 5-N-Ethyl-Glutamine, or even generally as an Adaptogen. L-Theanine is a natural substance, classified as a Nootropic, that can be found in green tea. When considering the benefits of this particular substance, many report anxiety relief, focus enhancements, memory improvement, and even significantly improved sleep patterns.


When taking L-Theanine, many take 100-200 mg per day. This may be split up throughout the day, or be taken all at once. The half life of the substance is approximately 1 hour.

So what is it?

L-Theanine is prominently known as an amino acid. This particular amino acid is ever so present in regular tea leaves, and is known for its remarkable ability to reduce drowsiness and exhaustion. Many report that when taken with coffee, which is a high source of caffeine, your anxiety levels will drop, and your overall mental performance will improve.  

How does it work?

L-THEANINE 2L-Theanine works to calm you by reducing your heart rate, and lowering your blood pressure. The substance is an anxiolytic, which generally means anxiety relief. L-Theanine is different than many stress relievers, as it boosts the calming feeling, rather than suppressing the stress feeling. Drugs that do the opposite are typically drowsiness inducing.

Your brain is monitored by a variety of chemical balances. When these balances are off, you may feel sad, angry, and even stressed. For example, one of the leading causes of stress is a serotonin imbalance, which is why so many people nowadays are taking antidepressants. L-Theanine is known for its ability to help regulate these balances, as well as the ability to increase the level of neurotransmitters in the brain.

It’s important to note that L-Theanine

 is known for its ability to boost dopamine levels in the brain. For those who are unfamiliar with dopamine, it’s basically the feel good chemical that you receive when your happy. When you win an award for example, or get an A+ on an exam.

Perks of L-Theanine

One of the most prominent perks of L-Theanine is its anxiety reduction capabilities. When one undergoes significant stress, there is often a physical side effect that goes right along with it. L-Theanine will combat these physical symptoms, and leave you quite calm. Some users even report a feeling of comforting warmth spreading throughout your body and limbs. This is probably reason enough for the popularity of tea all around the world.

When your body is stressed, you released the stress hormone, otherwise known as cortisol. L-Theanine doesn’t reduce this production rate, but rather, decreases the potency and concentration of such hormone. This means you’ll be incredibly alert, and your relaxation levels will be practically off the charts.  

Another particularly significant perk is L-Theanine’s ability to filter out environmental noise. Our environment is packed full of stimuli, whether you’re in the city or even in the woods. Sometimes we aren’t able to handle all this, and our brain shuts down. Thankfully, L-Theanine works to counter this. The substance filters out and even blocks some of this excessive stimuli, in order increase your attention towards a specific entity, as well as your memory on that specific topic. Some users even report that your mood is benefitted incredibly, saying that they’ve never felt more happy, or even euphoric at times. When taking L-Theanine with caffeine or coffee, you brain notably produces more theta waves, which means your brain is cognitively alert at a significant stature.

When taking L-Theanine, you’ll notice quite quickly that your sleep leaves you more refreshed, and your actual schedule is improved greatly. More specifically, your sleep schedule and patterns will be improved. It is important to note that this particular Nootropic does not work as a sedative, as they can be quite dangerous when used improperly. Rather, the Nootropic is a completely natural sleep aid, quite similar to melatonin.

Many report that when drinking coffee, or ingesting caffeine in any way shape or form, their blood pressure spikes. This leads to higher levels of stress, and a higher heart rate. When taking caffeine at the same time as L-Theanine, these negative symptoms won’t occur. L-Theanine will keep your blood pressure at a comfortable level, as well as keep your heart rate low. This will keep you calm, alert, and happy! It’s important to note that L-Theanine can even work as a preventative for hypertension among young adults! Talk to your doctor for more information on this one.

One of the worst things someone can go through is cancer. The cancer treatments are even quite awful. However, when taking L-Theanine at the same time as these cancer treatments, you have a higher chance of suppressing lung cancer growth, as well as leukemia cells. Treatments such as trichostatin are boosted to a level that’s quite significant in terms of cancer treatment.

Side Effects of L-Theanine

The United States has deemed L-Theanine to be incredibly safe to use. It is technically classified as a GRAS (Generally Recognized as Safe), which means it can be taken by anyone, and purchased virtually anywhere.

To prove that it is safe, scientists tested the substance on animals using extremely high doses. In these cases, even the animals tested negative for any toxicity at all. In terms of documented side effects, or even reported side effects, there are virtually none. The only complaints surrounding L-Theanine are minor, examples being dizziness and headaches. However, many claim these side effects when taking the substance with caffeine, which is known for its headache inducing effects.


For more information on how L-Theanine can help you are a friend/family member, speak to your doctor today. It is important to speak with your doctor before any decisions are made, however, in this case, as L-Theanine produces no side effects and is rated as a GRAS, you can start taking it immediately.

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