Twinlab L-Tyrosine, 500mg 100 Capsules

What the brand says

Twinlab L-Tyrosine provides L-Tyrosine, an amino acid that the body uses to create proteins, as well as neurotransmitters that influence mood, sleep and concentration. Twinlab L-Tyrosine is well tolerated by most individuals. Good nutrition is essential to keeping your body running at its peak. Twinlabs provides products to add support and fill in those nutritional gaps to keep you feeling and looking your best.