FREE Shipping on orders over $25 shipped by Amazon. L-Tyrosine 500mg - Best Tyrosine Supplement - Pure, Natural, and Vegan Amino Acid - Supports Healthy Brain Function, Stress, and Mood, Plus Optimum Mental Clarity, Alertness, and Energy - 120 Capsules. 120 Count (Pack of 1) 4.4 out of 5 stars.