20% off (Sale price $8.76, Reg. Price $10.95) :: Mood Support & Precursor to L-Dopa. A nonessential amino acid (protein building block) that the body synthesizes from phenylalanine, another amino acid. Tyrosine functions as a neurotransmitter. This may have effect on several important health conditions. Known for mood support and as a precursor to L-Dopa.
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