L-Tyrosine is a non-essential amino acid and one form of tyrosine that boast several awesome benefits for discerning athletes. By being a non-essential amino acid, the body creates it, using another amino acid, phenylalanine, meaning that you don’t have to get it from food.

In recent years, tyrosine has been sold in supplement form in either powder or capsules with or without the “L” alone or as part of a bulk supplement in a preworkout formula due to its array of positive benefits.

L-Tyrosine: A Non-Essential Amino Acid

L-Tyrosine, 100 g | Tyrosine | Amino Acids and Amino Acid Derivatives |  Organic & Bioorganic Chemicals | Chemikalien | Carl Roth - International

Tyrosine is found in all parts of the human body — including fluids.

Most people don’t need to directly supplement it, but Tyrosine will be excreted if too much is consumed.

Tyrosine aids the body with the production of enzymes, thyroid hormones, and the skin pigment melanin.

It helps the body produce neurotransmitters that helps nerve cells communicate — which is why it has lately become of interest for athletes and sport supplement companies.

Tyrosine is particularly important in the production of epinephrine, norepinephrine, and dopamine — which, again, is why you will see its inclusion in many stimulant-based sports supplements.

Outside of sports supplementation, it isn’t necessary for the majority of people to supplement L-tyrosine because their bodies automatically produce this non-essential amino acid as they have an in-built mechanism for regulating tyrosine production.

Benefits of L-Tyrosine

For fitness enthusiasts, it can produce a host of performance-enhancing benefits to give you an awesome workout.

With effects lasting around 3 hours, like caffeine, L-Tyrosine can boost athletic performance even in a state of sleep deprivation.

When partaking in a sport or a workout at the gym, alertness is paramount for decent performance. This non-essential amino acid can assist with improving alertness and focus to help give you an awesome workout.

As it is converted into the brain chemicals dopamine and norepinephrine, it can help elevate mood and combat depression. Nothing can kill your motivation more than a poor mood or depression.

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Why it makes for a good preworkout ingredient:

  • Improve focus
  • Elevates mood
  • Heightened Alertness
  • Boost Athletic performance in state of sleep deprivation
  • Combats depression


Despite being a decent addition to any preworkout blend, there are a few things you need to be made aware of if you suffer from certain health conditions.

We advise that you contact your physician before deploying a supplement containing L-tyrosine if you suffer from any of the following:

  • Thyroid Diseases
  • Consume SSRIs for depression
  • Consume Levodopa for Parkinson’s Disease
  • Frequent migraines
  • Are pregnant or breastfeeding

L-Tyrosine will be one of the featured ingredients in our upcoming preworkout “Zeus Juice.”