N-acetyl L-tyrosine is a modified form of the amino acid L-tyrosine, known for its role in the synthesis of neurotransmitters like dopamine and norepinephrine. The acetylation of L-tyrosine involves the addition of an acetyl group, enhancing its solubility and stability. The production of N-Acetyl L-Tyrosine often involves chemical processes where L-tyrosine reacts with acetic anhydride to form the acetylated derivative. This modified compound is believed to have improved bioavailability compared to L-tyrosine alone. It is commonly used in the formulation of dietary supplements and energy drinks.