Tyrosine What Is Tyrosine? If you’re struggling with stress, low mood, and symptoms of a sluggish metabolism, you may need a little adrenal and thyroid support and Tyrosine may be able to help. Tyrosine (or L-Tyrosine) is one of the 20 amino acids. Though it isn’t considered to be an essential amino acid, because it can be synthesized in our bodies, tyrosine is essential in the production of key neurotransmitters; dopamine, epinephrine and norepinephrine, as well as central nervous system and healthy mood balance. https://www.nationalnutrition.ca/amino-acids/single-aminos/tyrosine.html #Tyrosine