Provided are stable protein formulations that contain at least one amino acid.Incertain embodiments, amino acid combinations either at least two, or three, orfour, ormore amino acids are included. By virtue of inclusion of the amino acids, theformulation has low viscosity and a protein in the formulations is physically,chemically,and biological stable even at high concentrations. In further embodiments, byvirtue ofinclusion of the amino acids, a protein in the formulations is physically,chemically andbiological stable even at high concentrations.
