100 Capsules True BOOST contains the amino acid L-tyrosine. Tyrosine is the precursor of several neurotransmitters, including L-dopa, dopamine, norepinephrine, and epinephrine. L-tyrosine is essential for the synthesis of thyroid hormone in the body. Low levels of tyrosine have been found in the blood of people experiencing the symptoms of hypothyroidism. L-tyrosine is also used for stress and in weight loss as it is a good appetite suppressant. |