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Source Naturals L-Tyrosine 500 mg 100 Tablets Dairy-Free, Egg-Free, Gluten-Free, - Picture 1 of 2
Source Naturals L-Tyrosine 500 mg 100 Tablets Dairy-Free, Egg-Free, Gluten-Free, - Picture 2 of 2

Source Naturals L-Tyrosine

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Dietary Supplement Free Form Amino Acid 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 enkephalins, special peptides which subdue messages of physical discomfort. L-Tyrosine is also a precursor for the protective skin pigment melanin.