An aqueous composition comprising a therapeutic protein further characterized in that(i) the pH of the composition is adjusted to be between about 5.9 and 6.3, preferably about 6.1(ii) the composition comprises at least one displaced buffer having a pKa within 1 to 3 pH units of the pH of the composition(iv) the osmolarity of the composition is between 150-500 mOsm/L.