Source Naturals Ultra Colloidal Silver Throat Spray, 10 ppm, 1 Fluid Ounce

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 thyroid hormones and enkephalins, special p…

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 thyroid hormones and enkephalins, special peptides which subdue messages of physical discomfort. L-Tyrosine is also a constituent of amino sugars (glycosaminoglycans), special compounds which have important roles throughout the body.

Colloidal Silver

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