Kinetic analyses of two steps oxidation from l tyrosine to l dopaquinone with tyrosinase by capillary electrophoresis dynamic frontal analysis ScienceDirect Schematic illustration of tyrosine and catechol oxidation process by Download Scientific Diagram L Tyrosine vs. Dextroamphetamine In a sleep deprivation study, L Tyrosine actually outperformed one of Adderall's active stimulants (dextroamphetamine) in key cognitive tests, like mathematical processing and logical reasoning, even after 30 hours with Oxidation of tyrosine and formation of dityrosine Download Scientific Diagram Figure 2. [The tyrosine degradation pathway. Alkaptonuria]. GeneReviews NCBI Bookshelf