“L-tyrosine is a precursor to dopamine, the neurotransmitter that aids in motivation, mood regulation, and pleasure,” says Best. Studies have suggested limited benefit in individuals with low dopamine ...

Medically reviewed by Aviv Joshua, MS, RDN Phenylalanine is an essential amino acid (building block of protein) that the body doesn't produce, meaning it must be obtained through food. It is found in ...

There is insufficient data on the safety of supplementing L-tyrosine in pregnant or breastfeeding people. Therefore, sticking to food sources is the safest. People with hyperthyroidism (overactive ...

Cisbio's HTRF® KinEASE™ assay for screening serine/threonine kinases now extends to tyrosine kinases (TK). The assay, developed in partnership with Millipore, uses a unique substrate containing ...