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Twinlab L-Tyrosine

$7.39

The amino acid L-tyrosine is important for making the brain chemicals epinephrine, norepinephrine, and dopamine. Each capsule contains 500 mg.

Now Foods / Hc1177 L-Tyrosine

$6.99

L-Tyrosine is a non-essential amino acid that plays an important role in the production of neurotransmitters dopamine and norepinephrine. In addition, because L-Tyrosine is necessary for the synthesis of thyroid hormone and epinephrine (adrenaline),...

Source Naturals L-Tyrosine Free-Form Powder -- 3.53 oz

$7.13

Free-Form Powder.  Suitable for Vegetarians and Hypoallergenic. 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, as well as for...

Source Naturals L-Tyrosine Amino Acid -- 500 mg - 100 Tablets

$6.62

Free Form L-Tyrosine 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 encephalin,...

Source Naturals L-Tyrosine -- 500 mg - 50 Tablets

$3.56

Free Form Amino Acid.  Suitable for Vegetarians. L-Tryosine 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...

Source Naturals N-Acetyl L-Tyrosine -- 300 mg - 120 Tablets

$14.54

N-Acetyl L-tyrosine is a more rapidly absorbed and bioavailable form of the amino acid L-tyrosine, and is less prone to urinary excretion. L-Tyrosine is converted in the body to key biologic compounds, including epinephrine, dopamine, L-dopa, CoQ10,...