L-Tyrosine Products (Powder)

L-tyrosine is an amino acid used to make proteins. The body can make it from phenylalanine, and it also serves as a precursor in pathways that produce catecholamine neurotransmitters and thyroid hormones.

L-tyrosine is commonly included in supplements intended for focus during demanding conditions. A review of controlled studies found possible cognitive benefits under stress, but judged the overall evidence insufficient for confident recommendations. It should not be treated as a guaranteed focus or performance aid.

Check the Supplement Facts panel for the amount per serving and follow the label's mixing directions. Ask a healthcare professional before use if you take medication or have a health condition.