Source Naturals L-Tyrosine 500mg, 100 Tablets (Pack of 3)

A free-form amino acid which rapidly crosses the blood-brain barrier
Dietary supplement
Available in powder form Dietary supplement. L-Tyrosine is a free-form amino acid which rapidly crosses the blood-brain barrier. It is precursor for the neurotransmitters dopamine, norepinephrine, and epinephrine, for thyroid hormones, and for enkephalins, special peptides which More »