HIGH STRENGTH: Our high strength L-Tyrosine formula provides the equivalent of 500mg of L-Tyrosine per serving. L-Tyrosine 500mg Tablets - Anxiety & Stress, Brain Enhances, Mood Antidepressant. Tyrosine is the precursor of the stress hormones adrenaline and nor-adrenaline, which are responsible for the bodys fight or flight reaction.
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