Tyrosine and phenylalanine serve as metabolic precursors towards the synthesis of mescaline. Tyrosine can either endure a decarboxylation through tyrosine decarboxylase to generate tyramine and subsequently undertake an oxidation at carbon 3 by a monophenol hydroxylase or 1st be hydroxylated by tyrosine hydroxylase to variety L-DOPA and decarboxyla