N-Acetyl L-Tyrosine is a more rapidly absorbed and bioavailable form of the amino acid L-tyrosine, and is less prone to urinary excretion. L-Tyrosine is converted in the body to key biologic compounds, including epinephrine, dopamine, L-Dopa, Co-Q10, thyroid hormones, and melanin. The B vitamins pyridoxine (B-6), and folic acid are provided to assist in the conversion process.