How Long Does L-Tyrosine Take to Work?

Tyrosine is an amino acid that another amino acid in the body produces. It’s contained in many foods like fish, chicken, milk, and cheese. If you’re wondering how long does l tyrosine take to work it enters the bloodstream within half an hour but the full effects could take weeks.


If you’re considering dietary supplements then one of the ones you could take is tyrosine.  Amino acids are the building blocks of protein and the human body contains 20 of them. This is one of the 11 non-essential amino acids (NEAAs) that the body produces naturally. This is an interesting situation since there might be question marks about why you’d need more of this amino acid since your body already makes it. This amino acid is also available in the dietary supplement L-tyrosine. If you take it then there are various issues like how long does l-tyrosine take to work.

Why is this critical? There are various possible benefits of L-tyrosine. They include memory and performance boosts when you’re under stress. Other possible pluses involve, attention, mood, and hormones. These are all benefits you’ll want to get sooner rather than later. So, it’s important to know how soon you can start experiencing the benefits. Another big question is how soon you can start enjoying the full effects of the amino acid. This will take longer but it will usually be under one month. Even though this supplement has some possible side-effects they might be worth risking due to the benefits you can get. 

What Is Tyrosine?

This is the first question to take up. It’s one of the 11 non-essential amino acids found in the human body. This is about half of the 20 total amino acids humans have.

Since this amino acid is an NEAA it means you don’t have to get it from food or supplements. That’s different from the 9 essential amino acids (EAAs). However, you can still get it from foods like fish, chicken, turkey, and dairy.

In fact, the name of this amino acid is based on a Greek word that means “cheese” when translated. The amino acid’s name reveals cheese (turns in Greek) contains lots of tyrosine.

Tyrosine can help produce different kinds of substances. Some examples are melanin coloring for hair, skin, and eyes; hormones for metabolism and energy, and a chemical to boost memory.

Tyrosine is also important for the brain’s “neurotransmitters.” These send chemical signals between the brain and body. The central nervous system (CNS) is made up of nerve cells. They send electrical signals to other nerve cells, which creates a chain involving the brain (“computer”) and spinal cord (“highway”).

This includes the so-called “feel good” neurotransmitters These are substances that produce a “high” when you’re doing exercises like jogging and weightlifting. They can also give you a boost when you have issues like depression.

One of the main features of tyrosine is it can help in stressful situations. For example, in those situations, you might normally have problems with functions like memory.

However, studies show that tyrosine might help with the situation and help your brain perform better when it’s under stress. We’ve all noticed that when we’re stressed out we tend to have problems remembering stuff and thinking clearly.

It’s important to find out whether or not you need an L-tyrosine supplement. For example, sometimes it’s required because of factors like genetic disorders that prevent the body from producing tyrosine.

How Long Does L-Tyrosine Take to Work?

Benefits of Tyrosine

Why should you even consider taking an L-tyrosine supplement? It can offer various benefits including the following:

1. Performance

Some studies involving rodents showed that this amino acid helped with their physical performance. This was due to blocking the effects of a certain substance. This boosted their performance when doing various activities.

The scientists’ theory is that tyrosine might help boost physical performance in certain situations. That’s when high-level exercise caused enough stress to reduce the amounts of “feel-good” chemicals in the brain.

2. Parkinson’s

There might be a link between tyrosine and Parkinson’s. One study showed the amino acid boosted a certain chemical in the Parkinson’s patient’s brain. This substance is released to the feel-good chemical dopamine.

3. Memory

The amino acid might give you a memory boost during stressful situations. Stressors can have a negative effect on brain function and that includes memory. Studies show that tyrosine might help to improve memory in these situations.

4. Mood

The amino acid might also help to boost moods in people who experience depression. One study showed that a woman with clinical depression experienced great mood improvement from tyrosine.

However, the studies showing tyrosine’s effects on mood are mixed. Some show it’s not an effective antidepressant.

5. Thyroid Hormone

You’ve probably heard of the thyroid hormone. However, what’s it about in terms of health? These hormones are important to help the body’s cells repair themselves when they’re damaged. Tyrosine seems to help boost the hormone so the body can deal with stress better.

6. Attention

There’s some evidence that tyrosine might help to boost a person’s attention. One study that involved different colored lights showed that the patients that received tyrosine injections did better than those with fake pills.

Other studies also showed that the amino acid seems to help boost people’s attention. So, you might experience such benefits.

How Long Does L-tyrosine Take to Work?

Here are some issues you might be wondering about the amino acid supplement:

1. How fast does it work?

You should start experiencing the benefits of this amino acid supplements once it gets into your bloodstream. That should take about 15-30 minutes.

Then within two weeks, you should start experiencing the full effects of tyrosine on your brain and body. The amount of time required to experience these results will differ based on various factors. However, the maximum time should be half a month.

2. What’s the normal dosage?

This will differ based on different situations. Make sure to talk to your doctor about the right dosage for you. Generally, the ideal dosage is between 500mg to 2000mg each serving. However, this could differ based on factors like why you’re taking the amino acid supplement.

3. When’s the best time to take it?

You should consider taking the supplement when you’re experiencing stress and need a brain or mood boost. You could also take it before sports practices/games or gym workouts. You should take it with water in these situations.

4. Are there side-effects?

The amino acid has been classified as “safe” by the US Food and Drug Administration (FDA). However, people might still experience some side-effects.

Another issue is it might cause “interactions” with some medicines. It’s important to tell your doctor about any OTC and prescription meds you’re taking. In some cases, medicines or amino acid might work less effectively when taken at the same time.

5. Does it treat depression effectively?

The effects of tyrosine on depression are mixed. The theory is that since the amino acid produces neurotransmitters this can provide mood boosts and thus help with depression.

It seems that people who have low levels of certain hormones might benefit from learning how long does l tyrosine take to work.

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