L-Tyrosine Capsules

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L-Tyrosine helps increase mental performance under stress. It also increases concentration.

  • L-Tyrosine enhances mood and subjective wellbeing (ref)
  • L-Tyrosine increases levels of adrenaline and dopamine (ref)
  • L-Tyrosine aids with memory formation and cognitive performance (ref)

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Ever felt the weight of your work and family responsibilities crushing you? L-tyrosine is an amino acid that helps relieve stress to help increase mental performance. It’s hard to perform under pressure, but L-tyrosine can help improve memory and creative thinking.

Studies of L-tyrosine usually focus around military personnel using the amino acid to handle stress. The stressors often come in the form of temperature or altitude and L-tyrosine consistently helps prevent cognitive decline in stressful situations.

One of the reasons L-tyrosine is so effective is because it modules a brain chemical called dopamine and adrenaline. These are some of the most effective brain chemicals that allow users to improve focus and attention. They are the same brain chemicals associated with taking powerful drugs like modafinil and Adderall, though this is a safe alternative.

Side Effects

Even though L-tyrosine may be new, it is an amino acid you can find in many different foods. There are not many side effects of L-tyrosine to speak of. Some people have headaches from using L-tyrosine because metabolism of the molecule in the bloodstream is abnormally metabolized. This can lead to migraine headaches in some people, but the instances of this happening are rare.

Tyrosine can also interact with MAO inhibitors so make sure you are not taking any prescription MAOI while you are supplementing with L-tyrosine.


The dosage recommendations for L-tyrosine are quite different than many other nootropics. One should take 500 – 2000 mg of L-tyrosine around 30 – 60 minutes before a stressor. Usually this is prior to a workout or physical fatigue, but can also be related to specific work tasks.

People often combine L-tyrosine with 5-HTP into a “nootropic stack” to get synergistic effects of the two compounds together.


If you buy L-tyrosine capsules online from Pure Nootropics, you can expect arrival in the continental U.S. around 5 – 7 days.

Additional information

Weight 0.1125 lbs
Dimensions 1.95 x 1.95 x 3.95 in

90 x 500mg Capsules

Full Analysis

L-Tyrosine is a non-essential amino acid that helps reduce stress by increasing adrenaline and dopamine while helping to improve markers of memory retention.

  • L-Tyrosine is a precursor for chemicals that help feel better and less stressed (ref)
  • Supplementation can help to improve working memory (especially under stress)(ref)
  • L-Tyrosine can ameliorate sleep deprivation impact cognitive performance (ref)
  • Safe and healthy amino acid with few risks of side effects

L-Tyrosine Benefits

There are only 4 chemicals in your brain that lead to happiness and a state of flow. Two of them, dopamine and adrenaline (or norepinephrine) are changed with supplementation of L-tyrosine. This is one of the main L-tyrosine benefits and one of the main reasons why the drug is so popular. In many studies involving military personnel, L-tyrosine was implicated as a stress reduction tool that allowed servicemen and women to maintain a level of cognition while sleep deprived.

L-Tyrosine Studies – Show Me the Research

There are plenty of L-tyrosine studies because it is an amino acid. Many of these studies find the most use for L-tyrosine is as an anti-fatigue and stress agent. Mental fatigue, which can come from sleep deprivation or exertion, can lead to poor choices and decisions. L-tyrosine studies are most often done on the military who undergo some of the most rigorous training in the world.

Also, many of the L-tyrosine studies focus on memory loss and neuro protection. One of the studies shows that L-tyrosine could help prevent and reverse memory loss in some aging patients.

L-Tyrosine Side Effects – Digestive Health

As with most nootropic supplementation, gastrointestinal health might be complicated with L-tyrosine. While it is a rare occurrence, some people complain about digestive health when using this supplement. Most of the people who consume it do not have any L-tyrosine side effects, but one way to avoid this is through splitting up your doses.

Some people also have headaches from using L-tyrosine, which is a result of changing dopamine levels in the brain. People who have a deficiency of dopamine sometimes find that taking L-tyrosine can make these effects even worse. People already suffering from migraine headaches should keep this in mind. However, only a small percentage of users are at risk.

There are also some risks involved with using L-tyrosine if you are using SSRIs or have hyperactive thyroid conditions. Be sure to speak to a professional beforehand.

Buy L-Tyrosine

As an amino acid found in many different foods, L-tyrosine is a relatively safe nootropic to buy. It is not hard to find L-tyrosine for sale online, but you will want to ensure that you have a reputable dealer. There may not be a need for third-party certificates of analysis or special testing, but it is nice to know your retailer is reputable.


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