L-Theanine 180 Capsules 200mg | View Side Effects, Benefits & Dosage

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What is L-Theanine Capsules?

L-Theanine powder is a prominent dietary supplement and nootropic that is very widely known and used around the world. It is derived from the tea plant, Camellia sinensis. Its main mode of ingestion, green tea, was popularized in Japan for centuries due to the mood lifting benefits of green tea. The effects of green tea were noticeable enough for it to be incorporated into every aspect of East Asia's early culture, including Japanese tea ceremonies, and Chinese green tea being introduced into their daily diet. L-Theanine itself is commonly found in many teas, such as green and black tea, as well as some mushrooms, and is a non-essential amino acid. Being naturally occurring, you don't have to worry about ingesting some processed or manmade chemical when taking L-Theanine capsules or powders. L-theanine is a non-essential amino acid. L-theanine powder usually has a light, sweet taste to it, hence this is why people tend to add it to their coffee in the morning. One of the main uses of L-Theanine is to combine it with caffeine for an amazing mental boost. L-Theanine capsules tend to promote relaxation without causing negative effects. 

Having a similar structure to Glutemic acid and Glutamine, a naturally occurring amino acid in the body, L-Theanine tends to have similar effects. Glutamine is primarily responsible for assisting in neurotransmission and the sending of nerve impulses through the brain, as well as playing a role in healing and repair of the body's cells. While many effects of L-Theanine are similar to Glutamine, the fact that they are so similar means that L-Theanine can occasionally replace Glutamine in the Glutamine Receptors in the brain, which causes L-Theanine to counteract Glutamine in some aspects. L-Theanine also contributes to boosted GABA and other soothing brain chemicals such as serotonin and dopamine. These neurotransmitters are directly linked with calming sensations and relaxation.

L-Theanine can also have an effect on the allergic response by acting as an anti-histamine. The main trigger for allergic reactions is the release of histamines from immune cells called mast cells. The release of these histamines then trigger an immune response in the body, be it inflammation with the histamines drawing in macrophages to attack the invading microbe causing the reaction, or causing the production of mucous from goblet cells to help trap the microbes and expel them through sneezing or coughing. L-Theanine interferes with the production of these histamines by the mast cells, acting as an anti-histamine and reducing the potency of the allergic response.


How Does L-Theanine Work?

L-Theanine specifically targets neurotransmitters, specifically GABA which is responsible for regulating neuro-activity. GABA is the primary chemical responsible for inhibiting neurochemical activity in the brain, essentially preventing the neurons from firing excessively. This excessive firing can cause restlessness and other effects related to over mental stimulation, such as ruminating thoughts. The increased GABA production helps dampen those nerve signals resulting in an overall calmer and more relaxed state. L-Theanine also acts as a precursor to Serotonin, a neurochemical associated with the sleep and wake cycles. The key thing that differentiates L-Theanine and other supplements that simply include pure GABA and other neurotransmitters is that L-Theanine can penetrate the blood brain barrier while many of these other supplements cannot. As opposed to simply ingesting more GABA, L-Theanine triggers the production of GABA naturally within the blood brain barrier, making it far more effective in calming the brain.

L-Theanine is also known to increase Alpha waves in the brain, along with Dopamine and Norepinephrine, which help trigger the pleasure response in the brain. This is why green tea has such a calming effect. Alpha waves are also commonly associated with the brain in its default state. They are predominantly present when daydreaming or participating in active meditation, and generally linked to a more relaxed state. Therefore, the increase in Alpha waves due to L-Theanine also contribute to providing a relaxed state.


L-Theanine Capsules Benefits and Uses

L-Theanine has many overall health benefits. Having a similar function to Glutamine, L-Theanine can help with attentiveness and concentration. Taking about 200mg of L-Theanine with caffeine has been shown to be more effective than just taking L-Theanine alone, and improves the mind's ability to concentrate on multiple tasks at once. This is most likely in part to L-Theanine assisting in the neurotransmission process and working on the neurotransmitters of the brain, as well as counteracting some of the negative side effects of caffeine. For this reason they are often found together in workout supplements and pre-workout dietary regiments. Prolonged use of L-Theanine twice daily up to six weeks has also been shown to improve the restfulness of sleep and reduce nightly activity during sleep. As amino acids are oftentimes broken down within the body to form ATP for cell activity, L-Theanine may also provide a slight increase in energy in addition to making you feel more alert.

While L-Theanine does have many benefits, the method of intake also has a lot to do with those benefits as well as possible adverse effects. While it isn't as much of an issue with taking straight L-Theanine powder or L-Theanine capsules, since it is naturally occurring in teas (primarily green and black), there can be adverse effects if your primary source of L-Theanine is from these teas. As is the case with drinking too many caffeinated beverages such as coffee, drinking too much tea with L-Theanine can have some adverse effects, such as nausea, upset stomach, and irritability. It also should be noted that pregnant women or women who are breastfeeding should limit their intake of L-Theanine via teas to avoid over-caffeinating.



Caffeine and L-Theanine

If you've never heard of the caffeine and L-theanine combo stack, then you're severely missing out! Yes, these two extremely common supplements are amazing taken along....but take them together, and you're in for a wonderful surprise! Many of us know that caffeine can have some negative effects after usage, such as feeling drained or exhausted. However, when taken with L-theanine, the negative effects may be limited. L-theanine seems to counteract the negative effects of caffeine. Thus, these two wonder-supplements are often taken together as one unit! Many workout-enthusiasts take these two supplements to get a clean focus and energy to get through that tough workout routine. You'll find caffeine and L-theanine powder together in almost every pre-workout on the market. Now that makes a strong statement! 


L-Theanine Capsules may pair well with Aniracetam Capsules or Noopept Capsules to create the ultimate Nootropics stack!


Side Effects of L-Theanine Capsules

L-Theanine does have some negative side effects to it, but most of these are only seen when taking very high doses or in individuals who are hyper sensitive to changes in their internal body chemistry. L-Theanine is non-addictive unlike caffeine, so there's very little risk to using it so long as you keep within the recommended dosage. At worst, if taken at the recommended dosage, an individual won't notice the effects of L-Theanine at all, positive or negative.

Using L-Theanine in amounts higher than the recommended dosage can have some adverse effects though. Some side effects of heavy L-Theanine use generally includes headaches, sedation, muscle relaxation, anxiety, as well as potentially lowering your blood pressure.

If you have issues with high or low blood pressure, or are on any blood pressure medications, talk to your physician about any possible drug interaction before taking L-Theanine supplements, as it may drop your blood pressure to dangerously low levels if taken in too high a dosage or if you take medications that act as blood thinners or drugs that prevent vasoconstriction to aid with relieving high blood pressure. Drugs that L-Theanine may have a harmful interaction with include but are not limited to:captopril (Capoten), losartan (Cozaar), hydrochlorothiazide (HydroDiuril), valsartan (Diovan), diltiazem (Cardizem), Amlodipine (Norvasc), enalapril (Vasotec), and furosemide (Lasix).

If you are primarily using tea to get your L-Theanine intake, it should also be noted that some other amino acids naturally occurring in green teas can reduce the effect of some chemotherapy drugs.

Stimulant drugs are designed to speed up the nervous system, oftentimes making you feel jittery and increase your heart rate. Due to L-Theanine's effect on the nervous system, it may hinder and reduce the effect of stimulant drugs by counteracting their effect on the nervous system. Some stimulant drugs include epinephrine, phentermine, and pseudoephedrine.

It should also be noted that there are other supplements that have an effect on blood pressure such as Fish Oil, L-arginine, Andographis, Casein Peptides, Coenzyme Q-10, and Lycium. Taking L-Theanine in conjunction with these other supplements may also cause blood pressure to drop too much.

Keep in mind that GABA can upset the stomach, so if you take L-Theanine in conjunction with other GABA supplements or GABA inducing supplements to help with relaxation, start off slow and cycle it on and off as needed rather than using it daily. This should help keep the stomach issues to a minimum.

L-Theanine also pairs well with other psychostimulatory supplements. These include things like Aniracetam Capsules and Noopept Capsules, both of which provide a cognitive boost when taken. Noopept and Aniracetam do have their own fair share of side effects though, including possible anxiety, appetite changes, headaches, brain fog, irritability and weakness, some of which L-Theanine can help offset slightly. These side effects are also dependent on dosage, the total term in which you've been taking these supplements, as well as combinations with any other supplements or medications you may be taking.

When considering taking any kind of supplement or changing your diet, it is recommended to speak with your doctor or a nutritionist to help recognize any adverse effects that combined drugs or supplements might have.


L-Theanine Dosage

L-Theanine is to be taken orally, usually by capsule or powder. When taking L-Theanine capsules or powder, it is important to follow the recommended dosage on the bottle. It is recommended to start with the lowest recommended dosage and work your way up over the course of a week or two depending on if you are taking it in conjunction with caffeine. If taking it straight, anything in the 100-400mg range is effective in helping with sleep as well as attentiveness shortly after taking the supplements. When taken with caffeine, take no more than 100mg of each for the best results. Anything more may have minor adverse side effects and smaller doses may have a negligible effect. There have been no reports of overdose of L-Theanine, and unless taken in obscene quantities or by someone on blood pressure medications, should not result in any life threatening risks.


Where to Buy L-Theanine Capsules

Many drug stores and vitamin shops have L-Theanine for sale over the counter, as well as health food and grocery stores that have an emphasis on healthy living. Zach Attack Supplements also offers L-Theanine capsules for sale in 180 count bottles. Each capsule contains 200mg of 98%+ pure L-Theanine powder, which has been lab tested to ensure quality and purity. The FDA has also given L-Theanine a GRAS (Generally Recognized as Safe) stamp of approval, meaning it is an extremely safe dietary supplement.

Zach Attack Supplements L-Theanine Capsules pair well with our Caffeine Powder Capsules, providing a stable supply of energy keeping you focused and ready to take on your day. When taking both Zach Attack L-Theanine and Zach Attack Caffeine Powder Capsules in conjunction, lean towards taking the lower end of the recommended daily dose for optimal efficiency and minimal side effects.

Overall, L-Theanine is a natural supplement which provides a great deal of benefits with little risk for side effects or adverse reactions. If you are looking for something that will help keep you calm and focused throughout the day, and help you get a sound sleep at night, L-Theanine may be the supplement for you. If you're a big fan of tea, drinking more green or black tea should provide a healthy supply of L-Theanine, so long as you don't overdo it and over caffeinate yourself, especially if you're pregnant. If you're not a fan of teas or just don't have the time to brew tea, L-Theanine supplements are a great way to get it in your system quickly and easily. Zach Attack Supplements has not only L-Theanine for sale but many other complimentary supplements like caffeine that can be taken with it for an overall positive effect.

It is important to note that you should take any kind of supplement as noted on the bottle's recommended dosage and not abuse or take any dosage far exceeding that of the recommended serving or daily dose. Doing so can have adverse effects as well as side effects ranging from mild to potentially life threatening depending on the supplement and combination of other supplements or medications currently being used. Always consult your doctor before making and major dietary changes or adding a series of supplements to your diet. If you experience any kind of severe side effects, including but not limited to dizziness, shortness of breath, a significant drop in blood pressure, severe blood pressure, or any other serious health issues, stop taking any new supplements immediately and consult your physician. While supplements are oftentimes organic and generally not harmful under normal circumstances when taken alone, they are still naturally occurring chemicals which may react with one another adversely if not properly regulated or used outside of their specific product recommendations.