L-tyrosine restores balance during high performance activity. 4-pyridine-3-carbonylamino butanoic acid helps enhance mood, clarity, mental focus and overall nerve and brain health. 2-amino-3-(5-hydroxy-1H-inol-3-yl) propanoic acid is an important part of the unique mood elevator blend that restores muscular strength and enhances mood by alleviating stress associated with performance.