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L-Tyrosine Supplements

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Gen-Tec L-Tyrosine
13% OFF
Musashi L-Tyrosine
33% OFF

About L-Tyrosine Supplements

L-Tyrosine is considered a conditionally essential amino acid. This means that the human body can synthesize it, and therefore is not termed essential, yet under certain physiological conditions we cannot produce enough to meet demands. Tyrosine is synthesized from the essential amino acid L-Phenylalanine.


Tyrosine performs a host of important roles. It can be used for the biological production of L-Dopa, Dopamine, Noradrenaline and Adrenaline—and in that specific order. These are important hormones and neurotransmitters that help to keep us alert, alive and even content. Interestingly, anemia—or even just moderately low iron levels—can negatively impact synthesis of L-Tyrosine, and all of the compounds that come after it. This is because iron is needed by the enzyme that is responsible for making this chemical conversion. Starving this enzyme of iron can be compared to a builder without enough food (and coffee). Usually, less work will get done.


So, under what conditions does physiological demand exceed biological synthesis? Or, when can our body not synthesize enough? Though scientific research is still being conducted in this area, stress—and the myriad ways it is created—seems to be a likely culprit. Whether it be mental, physical or emotional stress, tyrosine supplementation may be helpful. Examples of physical stress include lifting heavy weights for a significant amount of time or working eight hours as a labourer. Both will no doubt increase the requirement for this important conditionally essential amino acid. Additionally, tyrosine supplementation may be useful for depression or addictions, as it is a precursor to dopamine, noradrenaline and adrenaline, all of which help to improve mood and level of satisfaction. 


L-Tyrosine is also used as a building block for melanin, the natural pigment found in skin, and the thyroid hormones. In fact, given that there are so many tyrosine residues found in the structure of the thyroid hormones, there may be a place for supporting the body with tyrosine when thyroid hormone levels are low.



L-tyrosine is best taken on an empty stomach, or mixed into pre-workout drinks before engaging in exercise. Given that tyrosine is used for the synthesis of adrenal hormones, this amino acid is often prescribed for individuals said to be adrenally exhausted. In this way, the amino acid may support the synthesis of adrenaline and noradrenaline. Tyrosine It is a white and relatively tasteless powder that mixes well with water.