L-Tyrosine is a free-form amino acid which rapidly crosses the blood-brain barrier. It is a precursor for the neurotransmitters dopamine, norepinephrine and epinephrine, for thyroid hormones, and for and enkephalins, special peptides which subdue messages of physical discomfort. L-Tyrosine is also a precursor for the protective skin pigment melanin.
WARNINGS: Contains tyrosine. Not to be used with MAO inhibitor drugs. If you are pregnant or breastfeeding, consult your health care professional before using this product.