Source Naturals L Phenylalanine, 50 Tablets, 500 mgSource Naturals LPhenylalanine, 500 mg, 50 Tablets, provides an essential amino acid that serves as a precursor to tyrosine. Tyrosine is subsequently converted into Ldopa, which then converts to norepinephrine, a key neurotransmitter and adrenal hormone. Additionally, LPhenylalanine is a direct precursor to phenylethylamine (PEA), another important neurotransmitter. This product is suitable for vegetarians. Each tablet contains 500 mg of